6 It happened as they came, when David returned from the slaughter of the Philistine, that the women came out of all the cities of Israel, singing and dancing, to meet king Saul, with tambourines, with joy, and with instruments of music. 7 The women sang one to another as they played, and said,
“Saul has slain his thousands,
David his ten thousands.” 8 Saul was very angry, and this saying displeased him; and he said, “They have ascribed to David ten thousands, and to me they have ascribed but thousands. What can he have more but the kingdom?” 9 Saul eyed David from that day and forward. 10 It happened on the next day, that an evil spirit from God came mightily on Saul, and he prophesied in the midst of the house. David played with his hand, as he did day by day. Saul had his spear in his hand; 11 and Saul threw the spear; for he said, “I will pin David even to the wall!” David escaped from his presence twice.
Matthew Henry's Commentary on 1 Samuel 18:6-11
Commentary on 1 Samuel 18:6-11
(Read 1 Samuel 18:6-11)
David's troubles not only immediately follow his triumphs, but arise from them; such is the vanity of that which seems greatest in this world. It is a sign that the Spirit of God is departed from men, if, like Saul, they are peevish, envious, suspicious, and ill-natured. Compare David, with his harp in his hand, aiming to serve Saul, and Saul, with his javelin in his hand, aiming to slay David; and observe the sweetness and usefulness of God's persecuted people, and the barbarity of their persecutors. But David's safety must be ascribed to God's providence.