21 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."
*Minor differences ignored. Grouped by changes, with first version listed as example.
Swear now - The same request which Jonathan made 1-Samuel 20:15. The deep, genealogical feeling of the Israelites breaks out here as so often elsewhere.
Swear now - Saul knew that an oath would bind David, though it was insufficient to bind himself; see 1-Samuel 19:6. He had sworn to his son Jonathan that David should not be slain; and yet sought by all means in his power to destroy him!
Swear now therefore unto me by the Lord,.... By the Word of the Lord, as the, Targum:
that thou wilt not cut off my seed after me; as was usually done in despotic governments in the eastern countries, and is at this day, when one is advanced to the throne of another, by whom issue is left, who may be rivals and competitors with him:
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.
*More commentary available at chapter level.