hill of God] That is, an high place neer Oibeah consecrated to divine service, and is therefore called the hill of God, in which was a school of the prophets. the garison] See Chap. 7. 13. with a psalterie] These instruments were used to chear and raise up the spirits, and thereby to fit them for prophecie. So 2 Kings 3:15. shall prophesie] That is, shall speak and sing of spirituall and divine matters.