Joseph Benson's Commentary of the Old and New Testaments - 1 Samuel 24:17-19
1 Samuel 24:17-19. Thou art more righteous than I He ingenuously acknowledges David’s integrity and his own iniquity. If a man find his enemy, will he let him go? That is, he will certainly destroy him to save himself. Thy behaviour, therefore, shows that thou hast no enmity to me. Wherefore the Lord reward thee good Because he thought himself not able to recompense so great a favour, he prays God to recompense it. read more
The Pulpit Commentary - 1 Samuel 24:20-22
I know well that thou shalt surely be king. Jonathan had expressed a similar conviction ( 1 Samuel 23:17 ), and probably there was a growing popular belief that David was the person in whom Samuel's prophetic words ( 1 Samuel 15:28 ) were to be fulfilled. Something may even have been known of the selection of David and his anointing at Bethlehem; not perhaps by the king, but in an indistinct way by the people. As for Saul himself, he must long have felt that God's blessing had departed... read more