So Samuel took the horn of oil and anointed1 him in the presence of his brothers, and from that day on the Spirit of the LORD 2 came upon David in power.3 Samuel then went to Ramah.
References for 1 Samuel 16:13
Now the Spirit of the LORD had departed4 from Saul, and an evil spirit5 from the LORD tormented him.6
References for 1 Samuel 16:14
Saul's attendants said to him, "See, an evil spirit from God is tormenting you.