Matthew Poole and continuators on Acts 13:22

22 And when he had removed him, he raised up unto them David to be their king, To whom also he gave testimony, and said, I have found David the son of Jesse, a man after mine own heart, which shall fulfil all my will.

God had taken Saul away by death; for he would not suffer David to hasten it.

Favoured or beloved by me, and obedient to me; my servant, as God speaks of him, Psal. 89.20.

And here, that he should fulfil all Gods will, to wit, in governing his people; for he hath a Testimonial upon record in Gods word, Psal. 78.72. He that is according to Gods heart, fulfil all the wills of God, and do nothing by partiality, thus also; but if it be Gods will either for him to do, or to suffer any thing, he is ready to set his fiat to it; as he dally prays (understandingly) that the will of the Lord may be done.

Marginal references: 1 Sam 16.13. Psal. 89.20, 21.