But the Spirit of the LORD departed from Saul, and a distressing spirit from the LORD troubled him.
1 Samuel 16:14
Surrounding context
16:13 Then Samuel took the horn of oil and anointed him in the midst of his brothers; and the Spirit of the LORD came upon David from that day forward. So Samuel arose and went to Ramah.
16:14 But the Spirit of the LORD departed from Saul, and a distressing spirit from the LORD troubled him.
16:15 And Saul's servants said to him, "Surely, a distressing spirit from God is troubling you.