12 So he sent and brought him in. Now he was ruddy, with beautiful eyes and a handsome appearance. And the Lord said, “Arise, anoint him; for this is he.” 13 Then Samuel took the horn of oil and anointed him in the midst of his brothers; and the Spirit of the Lord came mightily upon David from that day forward. And Samuel arose and went to Ramah.
14 Now the Spirit of the Lord departed from Saul, and an evil spirit from the Lord terrorized him. 15 Saul’s servants then said to him, “Behold now, an evil spirit from God is terrorizing you. 16 Let our lord now command your servants who are before you. Let them seek a man who is a skillful player on the harp; and it shall come about when the evil spirit from God is on you, that he shall play the harp with his hand, and you will be well.” 17 So Saul said to his servants, “Provide for me now a man who can play well and bring him to me.” 18 Then one of the young men said, “Behold, I have seen a son of Jesse the Bethlehemite who is a skillful musician, a mighty man of valor, a warrior, one prudent in speech, and a handsome man; and the Lord is with him.” 19 So Saul sent messengers to Jesse and said, “Send me your son David who is with the flock.” 20 Jesse took a donkey loaded with bread and a jug of wine and a young goat, and sent them to Saul by David his son. 21 Then David came to Saul and [e]attended him; and [f]Saul loved him greatly, and he became his armor bearer. 22 Saul sent to Jesse, saying, “Let David now stand before me, for he has found favor in my sight.” 23 So it came about whenever the evil spirit from God came to Saul, David would take the harp and play it with his hand; and Saul would be refreshed and be well, and the evil spirit would depart from him.
While it doesn’t say how much time passes between the two paragraphs, it’s an interesting “turn of events”. No doubt this was orchestrated by God far in advance. David has been anointed by Samuel, at God’s instruction, and now he finds himself playing the harp for the king of Israel.
The very man David is supposed to replace invites David into the courtroom because God’s spirit had left Saul. If you think God isn’t doing much in your life, think again. God will work in the life of anyone who is willing to serve Him.
You may not see the results right away, they might not be obvious to you, but know that God is always doing something, and if it isn’t with you, it isn’t because He doesn’t want to. Seek Him first in all your ways, trust Him, and see what God will do.