John Gill

And Nathan said to David, thou art the man,.... The rich man, or who is designed by him in the parable, and answers to him (t): thus saith the Lord God of Israel, I anointed thee king over Israel; that is, ordered Samuel to anoint him, who did, Sa1 16:1; to which this chiefly refers; and after that he was anointed first by the tribe of Judah, and then by all the tribes of Israel, by the appointment and providence of God; and this was great dignity he designed for him, and raised him to: and I delivered thee out of the hand of Saul; when he persecuted him, and sought to take away his life. (t) "----- mutato nomine, de te Fabula narratur -----". Horat. Sermon. l. 1. Satyr. 1. ver. 69,70.