13:22 He raised up unto them David. The Lord called the young shepherd to the throne.
A man after mine own heart. The language does not occur in this form in the Old Testament, but is implied in 1Sa 13:14. This does not imply that David was perfect, but that he sought to do the Lord's will, instead of showing stubborn disobedience, like Saul. He exhibited nobility of purpose, sought the welfare of the people, and aimed at a purer life.
13:22 Having removed him - Hence they might understand that the dispensations of God admit of various changes. I have found David, a man after my own heart - This expression is to be taken in a limited sense. David was such at that time, but not at all times. And he was so, in that respect, as he performed all God's will, in the particulars there mentioned: But he was not a man after God's own heart, in other respects, wherein he performed his own will. In the matter of Uriah, for instance, he was as far from being a man after God's own heart as Saul himself was. It is therefore a very gross, as well as dangerous mistake, to suppose this is the character of David in every part of his behaviour. We must beware of this, unless we would recommend adultery and murder as things after God's own heart. 1Sam 16:12,13.
13:14-31 When we come together to worship God, we must do it, not only by prayer and praise, but by the reading and hearing of the word of God. The bare reading of the Scriptures in public assemblies is not enough; they should be expounded, and the people exhorted out of them. This is helping people in doing that which is necessary to make the word profitable, to apply it to themselves. Every thing is touched upon in this sermon, which might best prevail with Jews to receive and embrace Christ as the promised Messiah. And every view, however short or faint, of the Lord's dealings with his church, reminds us of his mercy and long-suffering, and of man's ingratitude and perverseness. Paul passes from David to the Son of David, and shows that this Jesus is his promised Seed; a Saviour to do that for them, which the judges of old could not do, to save them from their sins, their worst enemies. When the apostles preached Christ as the Saviour, they were so far from concealing his death, that they always preached Christ crucified. Our complete separation from sin, is represented by our being buried with Christ. But he rose again from the dead, and saw no corruption: this was the great truth to be preached.
