1 Samuel 24:21

Thou wilt not cut off my seed after me; as princes use to destroy their competitors, and those that have any hopes of or pretence to their crown; and Saul had endeavoured to destroy David for the same reason, and therefore he feared a retaliation. Thou wilt not destroy my name, to wit, by cutting off my seed. So it is the same thing repeated in other words, as is usual in Scripture.