New King James Version
because they have done disgraceful things in Israel, have committed adultery with their neighbors’ wives, and have spoken lying words in My name, which I have not commanded them. Indeed I know, and am a witness, says the LORD.

King James Bible
Because they have committed villany in Israel, and have committed adultery with their neighbours' wives, and have spoken lying words in my name, which I have not commanded them; even I know, and am a witness, saith the LORD.

American Standard Version
because they have wrought folly in Israel, and have committed adultery with their neighbors wives, and have spoken words in my name falsely, which I commanded them not; and I am he that knoweth, and am witness, saith Jehovah.

Berean Study Bible
For they have committed an outrage in Israel by committing adultery with the wives of their neighbors and speaking lies in My name, which I did not command them to do. I am He who knows, and I am a witness, declares the LORD.”

Douay-Rheims Bible
Because they have acted folly in Israel, and have committed adultery with the wives of their friends, and have spoken lying words in my name, which I commanded them not: I am the judge and the witness, saith the Lord.

English Revised Version
because they have wrought folly in Israel, and have committed adultery with their neighbours' wives, and have spoken words in my name falsely, which I commanded them not; and I am he that knoweth, and am witness, saith the LORD.

World English Bible
because they have worked folly in Israel, and have committed adultery with their neighbors' wives, and have spoken words in my name falsely, which I didn't command them; and I am he who knows, and am witness, says Yahweh.

Young's Literal Translation
Because that they have done folly in Israel, and commit adultery with the wives of their neighbours, and speak a word in My name falsely that I have not commanded them, and I am He who knoweth and a witness -- an affirmation of Jehovah.

Jeremiah 29:23 Additional Translations ...