1 Samuel 18:10

10 And on the morrow an evil spirit from God rushed upon Saul, and he raved within his house, while David was playing the lyre, as he did day by day. Saul had his spear in his hand;

1 Samuel 18:10 Meaning and Commentary

1 Samuel 18:10

And it came to pass on the morrow
After the women had met him with their music and dancing, and when returned home:

that the evil spirit from God came upon Saul;
thinking on the above things that had passed, he became melancholy:

and he prophesied in the midst of the house;
either really, delivering out divine songs, as the prophets did; according to Abarbinel, he foretold that David would be king, and the kingdom would be taken from him, and given to him; or he feigned himself a prophet, mimicking their motions and gestures; or, as the Targum, acted like a mad man, or a fool, uttering foolish words, and using ridiculous gestures, which seems most agreeable to the evil spirit in him:

and David played with his hand as at other times;
upon his harp, to remove the evil spirit, or melancholy disposition from Saul; for though he was now advanced at court, and an officer in the army, and high in the affections and applause of the people: yet he did not think it below him to act as a musician, to do service to his prince; of such an humble, kind, and ingenuous disposition was he:

and [there was] a javelin in Saul's hand;
a kind of spear, or half pike, which he had taken into his hand on purpose to kill David while playing; for persons in such circumstances as his, as they are very mischievous, so very subtle at contriving.

1 Samuel 18:10 In-Context

8 And Saul was very angry, and this saying displeased him; he said, "They have ascribed to David ten thousands, and to me they have ascribed thousands; and what more can he have but the kingdom?"
9 And Saul eyed David from that day on.
10 And on the morrow an evil spirit from God rushed upon Saul, and he raved within his house, while David was playing the lyre, as he did day by day. Saul had his spear in his hand;
11 and Saul cast the spear, for he thought, "I will pin David to the wall." But David evaded him twice.
12 Saul was afraid of David, because the LORD was with him but had departed from Saul.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.