GOD'S WORD® Translation
But any prophet who dares to say something in my name that I didn't command him to say or who speaks in the name of other gods must die."

American Standard Version
But the prophet, that shall speak a word presumptuously in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, that same prophet shall die.

Berean Study Bible
But if any prophet dares to speak a message in My name that I have not commanded him to speak, or to speak in the name of other gods, that prophet must be put to death.”

Douay-Rheims Bible
But the prophet, who being corrupted with pride, shall speak in my name things that I did not command him to say, or in the name of strange gods, shall be slain.

English Revised Version
But the prophet, which shall speak a word presumptuously in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, that same prophet shall die.

King James Bible
But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.

World English Bible
But the prophet, who shall speak a word presumptuously in my name, which I have not commanded him to speak, or who shall speak in the name of other gods, that same prophet shall die."

Young's Literal Translation
'Only, the prophet who presumeth to speak a word in My name -- that which I have not commanded him to speak -- and who speaketh in the name of other gods -- even that prophet hath died.

Deuteronomy 18:20 Additional Translations ...