15 And the king's servants said unto the king, Behold, thy servants are ready to do whatsoever my lord the king shall appoint. 
15 The king's officials answered him, "Your servants are ready to do whatever our lord the king chooses."
15 And the king's servants said to the king, "Behold, your servants are ready to do whatever my lord the king decides."
15 The king's servants said, "Whatever our master, the king, says, we'll do; we're with you all the way!"
15 And the king's servants said to the king, "We are your servants, ready to do whatever my lord the king commands."
15 "We are with you," his advisers replied. "Do what you think is best."
Matthew Henry's Commentary on 2 Samuel 15:15
Commentary on 2 Samuel 15:13-23
(Read 2 Samuel 15:13-23)
David determined to quit Jerusalem. He took this resolve, as a penitent submitting to the rod. Before unrighteous Absalom he could justify himself, and stand out; but before the righteous God he must condemn himself, and yield to his judgments. Thus he accepts the punishment of his sin. And good men, when they themselves suffer, are anxious that others should not be led to suffer with them. He compelled none; those whose hearts were with Absalom, to Absalom let them go, and so shall their doom be. Thus Christ enlists none but willing followers. David cannot bear to think that Ittai, a stranger and an exile, a proselyte and a new convert, who ought to be encouraged and made easy, should meet with hard usage. But such value has Ittai for David's wisdom and goodness, that he will not leave him. He is a friend indeed, who loves at all times, and will adhere to us in adversity. Let us cleave to the Son of David, with full purpose of heart, and neither life nor death shall separate us from his love.