Bible Verses About False Prophets: Out of their own heart

Thus said Jehovah of Hosts: Ye do not hearken unto the words Of the prophets who are prophesying to you, They are making you vain things, A vision of their own heart they speak, Not from the mouth of Jehovah.

Till when is it in the heart of the prophets? The prophets of falsehood, Yea, prophets of the deceit of their heart,

`Son of man, prophesy concerning the prophets of Israel who are prophesying, and thou hast said to those prophesying from their own heart: Hear ye a word of Jehovah: