'Seed' in the Bible

Therefore the leprosy of Naaman will cling to you and to your seed forever." He went out from his presence a leper, as white as snow.

Now when Athaliah the mother of Ahaziah saw that her son was dead, she arose and destroyed all the seed royal.

Yahweh rejected all the seed of Israel, and afflicted them, and delivered them into the hand of spoilers, until he had cast them out of his sight.

But it happened in the seventh month, that Ishmael the son of Nethaniah, the son of Elishama, of the royal seed came, and ten men with him, and struck Gedaliah, so that he died, and the Jews and the Chaldeans that were with him at Mizpah.