The king said to him, "How many times must I make you swear to tell me nothing but the truth in the name of the LORD?" (NIV)
And the king said to him, How many times shall I warn you to tell nothing but the truth to me in the name of the Lord? (AMP)
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? (KJV)