Bible Verses About False Prophets: Not sent or commissioned by God

Then the LORD said to me, The prophets prophesy lies in my name; I didn’t send them, neither have I commanded them, neither spoke I to them: they prophesy to you a lying vision, and divination, and a thing of nothing, and the deceit of their own heart.

I sent not these prophets, yet they ran: I didn’t speak to them, yet they prophesied.

Send to all them of the captivity, saying, Thus says the LORD concerning Shemaiah the Nehelamite: Because Shemaiah has prophesied to you, and I didn’t send him, and he has caused you to trust in a lie;