Deuteronomy 18:21

English Standard Version

21 And if you say in your heart, ‘How may we know the word that the Lord has not spoken?’—

New International Version

21 You may say to yourselves, ‘How can we know when a message has not been spoken by the Lord?’

New International Reader’s Version

21 You will say to yourselves, ‘How can we know when a message hasn’t been spoken by the LORD?’

King James Version

21 And if thou say in thine heart, How shall we know the word which the LORD hath not spoken?