1-samuel 16:14

The Spirit of the Lord departed from Saul - He was thrown into such a state of mind by the judgments of God, as to be deprived of any regal qualities which he before possessed. God seems to have taken what gifts he had, and given them to David; and then the evil spirit came upon Saul; for what God fills not, the devil will.

An evil spirit from the Lord - The evil spirit was either immediately sent from the Lord, or permitted to come. Whether this was a diabolic possession, or a mere mental malady, the learned are not agreed; it seems to have partaken of both. That Saul had fallen into a deep melancholy, there is little doubt; that the devil might work more effectually on such a state of mind, there can be but little question. There is an old proverb, Satan delights to fish in troubled waters; and Saul's situation of mind gave him many advantages.

The theory of Dr. Scheuchzer, in his Physica Sacra, on the malady of Saul, is allowed to be very ingenious. It is in substance as follows: Health consists in a moderate tension of the fibres, which permits all the fluids to have an entire freedom of circulation, and to the spirits, that of diffusing themselves through all the limbs; on the contrary, disease consists in tensions of the fibres morbidly weak or morbidly strong. This latter seems to have been the case of Saul; and as the undulations of the air which convey sound communicate themselves to and through the most solid bodies, it is easy to suppose that by the modulations of music all the fibres of his body, which were under the influence of the morbidly increased tension, might be so relaxed as to be brought back into their natural state, and thus permit the re-establishment of a free and gentle circulation of the fluids, and consequently of the animal spirits, and thus induce calmness and tranquillity of mind. I believe this theory to be correct, and I should find no difficulty to amplify and to illustrate the subject. Even a skillful playing upon the harp was one means to bring a disordered state of the nervous and fibrous system into a capacity of affording such uninterrupted tranquillity to the mind as to render it capable of receiving the prophetic influence; see the case of Elisha, 2 Kings 3:14, 2 Kings 3:15. It has been said: -

"Music hath charms to sooth the savage breast."

This has been literally proved: a musician was brought to play on his instrument while they were feeding a savage lion in the tower of London; the beast immediately left his food, came towards the grating of his den, and began to move in such a way as to show himself affected by the music. The musician ceased, and the lion returned to his food; he recommenced, and the lion left off his prey, and was so affected as to seem by his motions to dance with delight. This was repeatedly tried, and the effects were still the same.

16:14 Departed - God took away that prudence, and courage, and alacrity, and other gifts wherewith be had qualified him for his public employment.From the Lord - That is, by God's permission, who delivered him up to be buffeted of Satan. Troubled - Stirred up in him unruly and tormenting passions; as envy, rage, fear, or despair. He grew fretful, and peevish, and discontented, timorous and suspicious, frequently starting and trembling.