16:11 Keepeth sheep - And consequently is the most unfit of all my sons for that high employment. Either therefore he did not understand David's wisdom and valour, or he judged him unfit, by reason of his mean education. And God so ordered it by his providence, that David's choice might plainly appear to be God's work, and not Samuel's, or Jesse's. David signifies beloved: a fit name for so eminent a type of the Beloved Son. It is supposed, David was now about twenty years old. If so, his troubles by Saul lasted near ten years: for he was thirty years old when Saul died. Samuel having done this went to Ramah. He retired to die in peace, since his eyes had seen the salvation, even the sceptre brought into the tribe of Judah.
16:6-13 It was strange that Samuel, who had been so disappointed in Saul, whose countenance and stature recommended him, should judge of another man by that rule. We can tell how men look, but God can tell what they are. He judges of men by the heart. We often form a mistaken judgment of characters; but the Lord values only the faith, fear, and love, which are planted in the heart, beyond human discernment. And God does not favour our children according to our fond partiality, but often most honours and blesses those who have been least regarded. David at length was pitched upon. He was the youngest of the sons of Jesse; his name signifies Beloved; he was a type of God's beloved Son. It should seem, David was least set by of all the sons of Jesse. But the Spirit of the Lord came upon David from that day forward. His anointing was not an empty ceremony, a Divine power went with that instituted sign; he found himself advanced in wisdom and courage, with all the qualifications of a prince, though not advanced in his outward circumstances. This would satisfy him that his election was of God. The best evidence of our being predestinated to the kingdom of glory, is, our being sealed with the Spirit of promise, and experience of a work of grace in our hearts.