'Part' in the Bible

where you die, will I die, and there will I be buried. Yahweh do so to me, and more also, if anything but death part you and me."

Stay this night, and it shall be in the morning, that if he will perform for you the part of a kinsman, well; let him do the kinsman's part. But if he will not do the part of a kinsman for you, then will I do the part of a kinsman for you, as Yahweh lives. Lie down until the morning."