John Chrysostom

"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. Of this man's seed hath God according to His promise raised unto Israel a Saviour, Jesus." This was no small thing that Christ should be from David. Observe how he twines the thread of his discourse alternately from things present, from the prophets. …

Homily on Acts 29 ↗

Theophylact of Ohrid

It should be noted that these words are not found in the Book of Kings in the same form as here; there it is only prophetically said by Samuel to Saul: "The Lord will find for Himself a man after His own heart, and the Lord will command him to be a ruler over His people, since you have not fulfilled what was commanded to you by the Lord" (1 Sam. 13:14). From these words Paul composed the following statement: "I have found a man after My own heart…"

Commentary on Acts ↗

Oecumenius

"I have found David," and the following. It should be noted that nowhere are these words quoted word for word in the book of Kings, but they were spoken prophetically by Samuel to Saul, therefore: "And now your kingdom shall not continue; and the Lord will seek for Himself a man after His own heart, and the Lord will appoint him ruler over His people, because you did not keep what the Lord commanded you." (1 Sam. …

Commentary on Acts ↗