2 Kings 3:15 - Joseph Benson’s Commentary on the Old and New Testaments

Now bring me a minstrel One that can sing and play well upon an instrument of music. This he requires, that his mind, which had been disturbed at the sight of idolatrous Jehoram, might be composed, and that he might be excited to more fervent prayer, and thereby be prepared to receive the prophetic inspiration. See on 1 Samuel 10:5; 1 Samuel 16:16. Those that desire communion with God, must keep their spirits quiet and serene. All hurry of spirits, and all turbulent passions, make us unfit for divine visitations. The hand of the Lord came upon him The spirit of prophecy, so called, to note that it was no natural or acquired virtue inherent in him, but a singular gift of God, given to whom and when he pleased.