Jezekiel 14:9

9 And if a prophet should cause to err and should speak, I the Lord have caused that prophet to err, and will stretch out my hand upon him, and will utterly destroy him from the midst of my people Israel.

Jezekiel 14:9 In-Context

7 For any man of the house of Israel, or of the strangers that sojourn in Israel, who shall separate himself from me, and conceive his imaginations in his heart, and set before his face the punishment of his iniquity, and come to the prophet to enquire of him concerning me; I the Lord will answer him, wherein he is entangled.
8 And I will set my face against that man, and will make him desolate and ruined, and will cut him off from the midst of my people; and ye shall know that I am the Lord.
9 And if a prophet should cause to err and should speak, I the Lord have caused that prophet to err, and will stretch out my hand upon him, and will utterly destroy him from the midst of my people Israel.
10 And they shall bear their iniquity according to the trespass of him that asks; and it shall be in like manner to the prophet according to the trespass:
11 that the house of Israel may no more go astray from me, and that they may no more defile themselves with any of their transgressions: so shall they be my people, and I will be their God, saith the Lord.

The Brenton translation of the Septuagint is in the public domain.