Conflicting streams of prophecy have existed before. Here is one example.

I Kings 22:1 And they continued three years without war between Syria and Israel.

2 And it came to pass in the third year, that Jehoshaphat the king of Judah came down to the king of Israel.

3 And the king of Israel said unto his servants, Know ye that Ramoth in Gilead is ours, and we be still, and take it not out of the hand of the king of Syria?

4 And he said unto Jehoshaphat, Wilt thou go with me to battle to Ramothgilead? And Jehoshaphat said to the king of Israel, I am as thou art, my people as thy people, my horses as thy horses.

5 And Jehoshaphat said unto the king of Israel, Enquire, I pray thee, at the word of the Lord to day.

6 Then the king of Israel gathered the prophets together, about four hundred men, and said unto them, Shall I go against Ramothgilead to battle, or shall I forbear? And they said, Go up; for the Lord shall deliver it into the hand of the king.

7 And Jehoshaphat said, Is there not here a prophet of the Lord besides, that we might enquire of him?

8 And the king of Israel said unto Jehoshaphat, There is yet one man, Micaiah the son of Imlah, by whom we may enquire of the Lord: but I hate him; for he doth not prophesy good concerning me, but evil. And Jehoshaphat said, Let not the king say so.

9 Then the king of Israel called an officer, and said, Hasten hither Micaiah the son of Imlah.

10 And the king of Israel and Jehoshaphat the king of Judah sat each on his throne, having put on their robes, in a void place in the entrance of the gate of Samaria; and all the prophets prophesied before them.

11 And Zedekiah the son of Chenaanah made him horns of iron: and he said, Thus saith the Lord, With these shalt thou push the Syrians, until thou have consumed them.

12 And all the prophets prophesied so, saying, Go up to Ramothgilead, and prosper: for the Lord shall deliver it into the king’s hand.

13 And the messenger that was gone to call Micaiah spake unto him, saying, Behold now, the words of the prophets declare good unto the king with one mouth: let thy word, I pray thee, be like the word of one of them, and speak that which is good.

14 And Micaiah said, As the Lord liveth, what the Lord saith unto me, that will I speak.

15 So he came to the king. And the king said unto him, Micaiah, shall we go against Ramothgilead to battle, or shall we forbear? And he answered him, Go, and prosper: for the Lord shall deliver it into the hand of the king.

16 And the king said unto him, How many times shall I adjure thee that thou tell me nothing but that which is true in the name of the Lord?

17 And he said, I saw all Israel scattered upon the hills, as sheep that have not a shepherd: and the Lord said, These have no master: let them return every man to his house in peace.

18 And the king of Israel said unto Jehoshaphat, Did I not tell thee that he would prophesy no good concerning me, but evil?

19 And he said, Hear thou therefore the word of the Lord: I saw the Lord sitting on his throne, and all the host of heaven standing by him on his right hand and on his left.

20 And the Lord said, Who shall persuade Ahab, that he may go up and fall at Ramothgilead? And one said on this manner, and another said on that manner.

21 And there came forth a spirit, and stood before the Lord, and said, I will persuade him.

22 And the Lord said unto him, Wherewith? And he said, I will go forth, and I will be a lying spirit in the mouth of all his prophets. And he said, Thou shalt persuade him, and prevail also: go forth, and do so.

23 Now therefore, behold, the Lord hath put a lying spirit in the mouth of all these thy prophets, and the Lord hath spoken evil concerning thee.

24 But Zedekiah the son of Chenaanah went near, and smote Micaiah on the cheek, and said, Which way went the Spirit of the Lord from me to speak unto thee?

25 And Micaiah said, Behold, thou shalt see in that day, when thou shalt go into an inner chamber to hide thyself.

26 And the king of Israel said, Take Micaiah, and carry him back unto Amon the governor of the city, and to Joash the king’s son;

27 And say, Thus saith the king, Put this fellow in the prison, and feed him with bread of affliction and with water of affliction, until I come in peace.

28 And Micaiah said, If thou return at all in peace, the Lord hath not spoken by me. And he said, Hearken, O people, every one of you.

29 So the king of Israel and Jehoshaphat the king of Judah went up to Ramothgilead.

30 And the king of Israel said unto Jehoshaphat, I will disguise myself, and enter into the battle; but put thou on thy robes. And the king of Israel disguised himself, and went into the battle.

31 But the king of Syria commanded his thirty and two captains that had rule over his chariots, saying, Fight neither with small nor great, save only with the king of Israel.

32 And it came to pass, when the captains of the chariots saw Jehoshaphat, that they said, Surely it is the king of Israel. And they turned aside to fight against him: and Jehoshaphat cried out.

33 And it came to pass, when the captains of the chariots perceived that it was not the king of Israel, that they turned back from pursuing him.

34 And a certain man drew a bow at a venture, and smote the king of Israel between the joints of the harness: wherefore he said unto the driver of his chariot, Turn thine hand, and carry me out of the host; for I am wounded.

35 And the battle increased that day: and the king was stayed up in his chariot against the Syrians, and died at even: and the blood ran out of the wound into the midst of the chariot.

36 And there went a proclamation throughout the host about the going down of the sun, saying, Every man to his city, and every man to his own country.

37 So the king died, and was brought to Samaria; and they buried the king in Samaria.

38 And one washed the chariot in the pool of Samaria; and the dogs licked up his blood; and they washed his armour; according unto the word of the Lord which he spake.

39 Now the rest of the acts of Ahab, and all that he did, and the ivory house which he made, and all the cities that he built, are they not written in the book of the chronicles of the kings of Israel?

40 So Ahab slept with his fathers; and Ahaziah his son reigned in his stead.

41 And Jehoshaphat the son of Asa began to reign over Judah in the fourth year of Ahab king of Israel.

42 Jehoshaphat was thirty and five years old when he began to reign; and he reigned twenty and five years in Jerusalem. And his mother’s name was Azubah the daughter of Shilhi.

43 And he walked in all the ways of Asa his father; he turned not aside from it, doing that which was right in the eyes of the Lord: nevertheless the high places were not taken away; for the people offered and burnt incense yet in the high places.

44 And Jehoshaphat made peace with the king of Israel.

45 Now the rest of the acts of Jehoshaphat, and his might that he shewed, and how he warred, are they not written in the book of the chronicles of the kings of Judah?

46 And the remnant of the sodomites, which remained in the days of his father Asa, he took out of the land.

47 There was then no king in Edom: a deputy was king.

48 Jehoshaphat made ships of Tharshish to go to Ophir for gold: but they went not; for the ships were broken at Eziongeber.

49 Then said Ahaziah the son of Ahab unto Jehoshaphat, Let my servants go with thy servants in the ships. But Jehoshaphat would not.

50 And Jehoshaphat slept with his fathers, and was buried with his fathers in the city of David his father: and Jehoram his son reigned in his stead.

51 Ahaziah the son of Ahab began to reign over Israel in Samaria the seventeenth year of Jehoshaphat king of Judah, and reigned two years over Israel.

52 And he did evil in the sight of the Lord, and walked in the way of his father, and in the way of his mother, and in the way of Jeroboam the son of Nebat, who made Israel to sin:

53 For he served Baal, and worshipped him, and provoked to anger the Lord God of Israel, according to all that his father had done.

Another example is the biographical history of Jeremiah. He was telling the nation it would go into captivity because of its sins. Other prophets were saying, in today’s jargon, “we’ve got this”, “no way”. Here is one example of a showdown between Jeremiah and another prophet.

Jeremiah 28:1 And it came to pass the same year, in the beginning of the reign of Zedekiah king of Judah, in the fourth year, and in the fifth month, that Hananiah the son of Azur the prophet, which was of Gibeon, spake unto me in the house of the Lord, in the presence of the priests and of all the people, saying,

2 Thus speaketh the Lord of hosts, the God of Israel, saying, I have broken the yoke of the king of Babylon.

3 Within two full years will I bring again into this place all the vessels of the Lord’s house, that Nebuchadnezzar king of Babylon took away from this place, and carried them to Babylon:

4 And I will bring again to this place Jeconiah the son of Jehoiakim king of Judah, with all the captives of Judah, that went into Babylon, saith the Lord: for I will break the yoke of the king of Babylon.

5 Then the prophet Jeremiah said unto the prophet Hananiah in the presence of the priests, and in the presence of all the people that stood in the house of the Lord,

6 Even the prophet Jeremiah said, Amen: the Lord do so: the Lord perform thy words which thou hast prophesied, to bring again the vessels of the Lord’s house, and all that is carried away captive, from Babylon into this place.

7 Nevertheless hear thou now this word that I speak in thine ears, and in the ears of all the people;

8 The prophets that have been before me and before thee of old prophesied both against many countries, and against great kingdoms, of war, and of evil, and of pestilence.

9 The prophet which prophesieth of peace, when the word of the prophet shall come to pass, then shall the prophet be known, that the Lord hath truly sent him.

10 Then Hananiah the prophet took the yoke from off the prophet Jeremiah’s neck, and brake it.

11 And Hananiah spake in the presence of all the people, saying, Thus saith the Lord; Even so will I break the yoke of Nebuchadnezzar king of Babylon from the neck of all nations within the space of two full years. And the prophet Jeremiah went his way.

12 Then the word of the Lord came unto Jeremiah the prophet, after that Hananiah the prophet had broken the yoke from off the neck of the prophet Jeremiah, saying,

13 Go and tell Hananiah, saying, Thus saith the Lord; Thou hast broken the yokes of wood; but thou shalt make for them yokes of iron.

14 For thus saith the Lord of hosts, the God of Israel; I have put a yoke of iron upon the neck of all these nations, that they may serve Nebuchadnezzar king of Babylon; and they shall serve him: and I have given him the beasts of the field also.

15 Then said the prophet Jeremiah unto Hananiah the prophet, Hear now, Hananiah; The Lord hath not sent thee; but thou makest this people to trust in a lie.

16 Therefore thus saith the Lord; Behold, I will cast thee from off the face of the earth: this year thou shalt die, because thou hast taught rebellion against the Lord.

17 So Hananiah the prophet died the same year in the seventh month.

There is so much more in the book of Jeremiah … of what he said, of what others said, of what the king said … but here is one indication of how the king viewed Jeremiah’s messages.

Jeremiah 36:21 So the king sent Jehudi to fetch the roll: and he took it out of Elishama the scribe’s chamber. And Jehudi read it in the ears of the king, and in the ears of all the princes which stood beside the king.

22 Now the king sat in the winterhouse in the ninth month: and there was a fire on the hearth burning before him.

23 And it came to pass, that when Jehudi had read three or four leaves, he cut it with the penknife, and cast it into the fire that was on the hearth, until all the roll was consumed in the fire that was on the hearth.

24 Yet they were not afraid, nor rent their garments, neither the king, nor any of his servants that heard all these words.

25 Nevertheless Elnathan and Delaiah and Gemariah had made intercession to the king that he would not burn the roll: but he would not hear them.

And then there is this, also from the book of Jeremiah.

Jeremiah 23:13 And I have seen folly in the prophets of Samaria; they prophesied in Baal, and caused my people Israel to err.

14 I have seen also in the prophets of Jerusalem an horrible thing: they commit adultery, and walk in lies: they strengthen also the hands of evildoers, that none doth return from his wickedness; they are all of them unto me as Sodom, and the inhabitants thereof as Gomorrah.

15 Therefore thus saith the Lord of hosts concerning the prophets; Behold, I will feed them with wormwood, and make them drink the water of gall: for from the prophets of Jerusalem is profaneness gone forth into all the land.

16 Thus saith the Lord of hosts, Hearken not unto the words of the prophets that prophesy unto you: they make you vain: they speak a vision of their own heart, and not out of the mouth of the Lord.

17 They say still unto them that despise me, The Lord hath said, Ye shall have peace; and they say unto every one that walketh after the imagination of his own heart, No evil shall come upon you.

18 For who hath stood in the counsel of the Lord, and hath perceived and heard his word? who hath marked his word, and heard it?

19 Behold, a whirlwind of the Lord is gone forth in fury, even a grievous whirlwind: it shall fall grievously upon the head of the wicked.

20 The anger of the Lord shall not return, until he have executed, and till he have performed the thoughts of his heart: in the latter days ye shall consider it perfectly.

21 I have not sent these prophets, yet they ran: I have not spoken to them, yet they prophesied.

22 But if they had stood in my counsel, and had caused my people to hear my words, then they should have turned them from their evil way, and from the evil of their doings.

23 Am I a God at hand, saith the Lord, and not a God afar off?

24 Can any hide himself in secret places that I shall not see him? saith the Lord. Do not I fill heaven and earth? saith the Lord.

25 I have heard what the prophets said, that prophesy lies in my name, saying, I have dreamed, I have dreamed.

26 How long shall this be in the heart of the prophets that prophesy lies? yea, they are prophets of the deceit of their own heart;

27 Which think to cause my people to forget my name by their dreams which they tell every man to his neighbour, as their fathers have forgotten my name for Baal.

28 The prophet that hath a dream, let him tell a dream; and he that hath my word, let him speak my word faithfully. What is the chaff to the wheat? saith the Lord.

29 Is not my word like as a fire? saith the Lord; and like a hammer that breaketh the rock in pieces?

30 Therefore, behold, I am against the prophets, saith the Lord, that steal my words every one from his neighbour.

31 Behold, I am against the prophets, saith the Lord, that use their tongues, and say, He saith.

32 Behold, I am against them that prophesy false dreams, saith the Lord, and do tell them, and cause my people to err by their lies, and by their lightness; yet I sent them not, nor commanded them: therefore they shall not profit this people at all, saith the Lord.

33 And when this people, or the prophet, or a priest, shall ask thee, saying, What is the burden of the Lord? thou shalt then say unto them, What burden? I will even forsake you, saith the Lord.

34 And as for the prophet, and the priest, and the people, that shall say, The burden of the Lord, I will even punish that man and his house.

35 Thus shall ye say every one to his neighbour, and every one to his brother, What hath the Lord answered? and, What hath the Lord spoken?

36 And the burden of the Lord shall ye mention no more: for every man’s word shall be his burden; for ye have perverted the words of the living God, of the Lord of hosts our God.

37 Thus shalt thou say to the prophet, What hath the Lord answered thee? and, What hath the Lord spoken?

38 But since ye say, The burden of the Lord; therefore thus saith the Lord; Because ye say this word, The burden of the Lord, and I have sent unto you, saying, Ye shall not say, The burden of the Lord;

39 Therefore, behold, I, even I, will utterly forget you, and I will forsake you, and the city that I gave you and your fathers, and cast you out of my presence:

40 And I will bring an everlasting reproach upon you, and a perpetual shame, which shall not be forgotten.

Paul Harvey used to end his tales with “… and now you know the rest of the story.”

The rest of the story regarding Jeremiah is this.  Because he had been faithful to the Lord God at great sacrifice, suffering, imprisonment, and persecution, when the rest of the nation was going into captivity, this was his reward.

Jeremiah 40:1 The word that came to Jeremiah from the Lord, after that Nebuzaradan the captain of the guard had let him go from Ramah, when he had taken him being bound in chains among all that were carried away captive of Jerusalem and Judah, which were carried away captive unto Babylon.

4 And now, behold, I loose thee this day from the chains which were upon thine hand. If it seem good unto thee to come with me into Babylon, come; and I will look well unto thee: but if it seem ill unto thee to come with me into Babylon, forbear: behold, all the land is before thee: whither it seemeth good and convenient for thee to go, thither go.

The few quotes above do not do justice to all that is in the book of Jeremiah.  However, what it does indicate is that there can be more than one prophetic stream.  Time will tell which is correct.

In Acts 5 there is the wisdom of Gamaliel.

Acts 5:34 Then stood there up one in the council, a Pharisee, named Gamaliel, a doctor of the law, had in reputation among all the people, and commanded to put the apostles forth a little space;

35 And said unto them, Ye men of Israel, take heed to yourselves what ye intend to do as touching these men.

36 For before these days rose up Theudas, boasting himself to be somebody; to whom a number of men, about four hundred, joined themselves: who was slain; and all, as many as obeyed him, were scattered, and brought to nought.

37 After this man rose up Judas of Galilee in the days of the taxing, and drew away much people after him: he also perished; and all, even as many as obeyed him, were dispersed.

38 And now I say unto you, Refrain from these men, and let them alone: for if this counsel or this work be of men, it will come to nought:

39 But if it be of God, ye cannot overthrow it; lest haply ye be found even to fight against God.