'Swear to Me' in the Bible

And now swear to me here by God that thou wilt not deal deceitfully with me, nor with my son, nor with my grandson. According to the kindness that I have done to thee, thou shalt do to me, and to the land in which thou sojournest.

And Jacob said, Swear to me this day; and he sware unto him: and he sold his birthright unto Jacob.

And he said, Swear to me; and he swore to him. And Israel worshipped on the bed's head.