And the Spirit of the LORD will come upon thee, and thou shalt prophesy with them, and shalt be turned into another man.
The spirit of the Lord will come upon thee - literally, rush upon thee. This phrase is used of those who, under the influence of divine inspiration, uttered truths supernaturally revealed to them, in a lofty, poetic style, or who celebrated in exalted strains of praise the glorious deeds of Yahweh to His people. In this latter sense it is applied to Miriam (Exodus 15:20-21), to the 70 elders (Numbers 11:29), and to the choir of young prophets, to which Saul joined himself, and in whose sacred employment he participated (cf. Luke 1:65, end). 'The Spirit of the Lord came upon him.' It was the seal and pledge of the blessings which the Lord bestowed upon the rulers of the nation for the people's benefit, suddenly endowing him with a capacity and disposition to act in a manner far superior to his previous character and habits; so that, instead of the simplicity, ignorance, and sheepishness of a peasant, he would display an energy, wisdom, and magnanimity worthy of a prince.