1 Samuel 10:7-8

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