1 Samuel 10:8 ASV

⁶  and the Spirit of Jehovah will come mightily upon thee, and thou shalt prophesy with them, and shalt be turned into another man.

⁷  And let it be, when these signs are come unto thee, that thou do as occasion shall serve thee; for God is with thee.

⁸  And thou shalt go down before me to Gilgal; and, behold, I will come down unto thee, to offer burnt-offerings, and to sacrifice sacrifices of peace-offerings: seven days shalt thou tarry, till I come unto thee, and show thee what thou shalt do.

⁹  And it was so, that, when he had turned his back to go from Samuel, God gave him another heart: and all those signs came to pass that day.

¹⁰  And when they came thither to the hill, behold, a band of prophets met him; and the Spirit of God came mightily upon him, and he prophesied among them.