Swear now therefore to me by Yahweh, that you will not cut off my seed after me, and that you will not destroy my name out of my father's house.
and that thou wilt not destroy my name out of my father's house; by cutting off his seed, the same thing in different words repeated, for the confirmation of it; children bear the names of their fathers, and by them their memory is perpetuated, and cutting off them is destroying the name of their parents.