12 And he sent, and brought him in. Now he was ruddy, and withal of a beautiful countenance, and goodly to look upon. And Jehovah said, Arise, anoint him; for this is he. 13 Then Samuel took the horn of oil, and anointed him in the midst of his brethren: and the Spirit of Jehovah came mightily upon David from that day forward. So Samuel rose up, and went to Ramah.

David Plays the Harp for Saul

14 Now the Spirit of Jehovah departed from Saul, and an evil spirit from Jehovah troubled him. 15 And Saul's servants said unto him, Behold now, an evil spirit from God troubleth thee. 16 Let our lord now command thy servants, that are before thee, to seek out a man who is a skilful player on the harp: and it shall come to pass, when the evil spirit from God is upon thee, that he shall play with his hand, and thou shalt be well. 17 And Saul said unto his servants, Provide me now a man that can play well, and bring him to me. 18 Then answered one of the young men, and said, Behold, I have seen a son of Jesse the Beth-lehemite, that is skilful in playing, and a mighty man of valor, and a man of war, and prudent in speech, and a comely person; and Jehovah is with him. 19 Wherefore Saul sent messengers unto Jesse, and said, Send me David thy son, who is with the sheep. 20 And Jesse took an ass [laden] with bread, and a bottle of wine, and a kid, and sent them by David his son unto Saul. 21 And David came to Saul, and stood before him: and he loved him greatly; and he became his armorbearer. 22 And Saul sent to Jesse, saying, Let David, I pray thee, stand before me; for he hath found favor in my sight. 23 And it came to pass, when the [evil] spirit from God was upon Saul, that David took the harp, and played with his hand: so Saul was refreshed, and was well, and the evil spirit departed from him.

Matthew Henry's Commentary on 1 Samuel 16:12-23

Commentary on 1 Samuel 16:6-13

(Read 1 Samuel 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.

Commentary on 1 Samuel 16:14-23

(Read 1 Samuel 16:14-23)

Saul is made a terror to himself. The Spirit of the Lord departed from him. If God and his grace do not rule us, sin and Satan will have possession of us. The devil, by the Divine permission, troubled and terrified Saul, by the corrupt humours of his body, and passions of his mind. He grew fretful, peevish, and discontented, and at times a madman. It is a pity that music, which may be serviceable to the good temper of the mind, should ever be abused, to support vanity and luxury, and made an occasion of drawing the heart from God and serious things. That is driving away the good Spirit, not the evil spirit. Music, diversions, company, or business, have for a time often been employed to quiet the wounded conscience; but nothing can effect a real cure but the blood of Christ, applied in faith, and the sanctifying Spirit sealing the pardon, by his holy comforts. All other plans to dispel religious melancholy are sure to add to distress, either in this world or the next.