John Gill Bible Commentary

The Lord render to every man his righteousness, and his faithfulness,.... Or recompense every man that deals justly and faithfully with others, as he had done with Saul; or the Lord, who is just and faithful to his promises, reward the men that act the good and upright part; and this was a prayer of faith; for David doubted not that, though Saul might fail, yet God could not: for the Lord delivered thee into my hand this day; or, "into an hand" (x) into the hand of Abishai, who had it in his power to slay him, when he went and took the spear that was at his bolster, and would have done it, but David suffered him not: but I would not stretch forth my hand against the Lord's anointed; nor suffer another to stretch forth his hand against him; so careful and tender was he of his life. (x) "in manum", Pagninus, Montanus.