NET
15 The king said to him, “How many times must I make you solemnly promise in the name of the Lord to tell me only the truth?”
Darby
15 And the king said to him, How many times shall I adjure thee that thou tell me nothing but truth in the name of Jehovah?
KJV
15 And the king said to him, How many times shall I adjure thee that thou say nothing but the truth to me in the name of the LORD?