2 Samuel 18:13 in the King James Version
Otherwise I should have wrought falsehood against mine own life: for there is no matter hid from the king, and thou thyself wouldest have set thyself against me.
Context
12 The man said to Joab, “Though I should receive a thousand pieces of silver in my hand, I still wouldn’t stretch out my hand against the king’s son; for in our hearing the king commanded you and Abishai and Ittai, saying, ‘Beware that no one touch the young man Absalom.’
13 Otherwise, if I had dealt falsely against his life (and there is no matter hidden from the king), then you yourself would have set yourself against me.”
14 Then Joab said, “I’m not going to wait like this with you.” He took three darts in his hand and thrust them through Absalom’s heart while he was still alive in the middle of the oak.