1 Samuel 16:13

16:13 So Samuel took the horn full of olive oil and anointed him in the presence of his brothers. The Spirit of the Lord rushed upon David from that day onward. Then Samuel got up and went to Ramah.

1 Samuel 29:3

29:3 The leaders of the Philistines asked, “What about these Hebrews?” Achish said to the leaders of the Philistines, “Isn’t this David, the servant of King Saul of Israel, who has been with me for quite some time? ¹  I have found no fault with him from the day of his defection until the present time!” ² 

[29:3]  ¹ tn Heb “these days or these years.”

[29:3]  ² tn Heb “from the day of his falling [away] until this day.”