Except that throughout scripture, we are warned about false prophets.
Yep. Here are just a few verses:
Deuteronomy 18:22 "When a prophet speaketh in the name of the LORD, if the thing follow not, nor come to pass, that [is] the thing which the LORD hath not spoken, [but] the prophet hath spoken it presumptuously: thou shalt not be afraid of him."
Ezekiel 13:9 "My hand will be against the prophets who see false visions and utter lying divinations."
Matthew 7:15 "Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves."
Matthew 24:11 "And many false prophets shall rise, and shall deceive many."