'Offspring' in the Bible

"I [myself] receive the Levites from the midst of the {Israelites} in the place of all [the] firstborn of [the] offspring of the womb from the {Israelites}. The Levites will be mine

But my servant Caleb, because another spirit was with him, he remained true after me, and I will bring him into the land that {he entered}, and his offspring will take possession of it.

[it was] a memorial for the {Israelites}, so that {no strange man} who is not from {the offspring} of Aaron should approach the presence [of] Yahweh to burn a smoke offering; he will not be like Korah and his company, just as Yahweh had spoken to him by the hand of Moses.

All [the] first offspring of a womb of any creature that they offer to Yahweh, whether human or animal, will be yours; you will surely redeem the firstborn of the human and the unclean firstborn of the animal.

All the contributions of holiness that the {Israelites} offer to Yahweh I have given to you and your sons and your daughters with you as an eternal decree; it [is] an eternal covenant of salt {before} Yahweh to you and your offspring with you."

He will pour water from his buckets, and his offspring [will be] like many waters; his king will be higher than Agag, and his kingdom will be exalted.

and it will be for him and his {offspring} after him a covenant of an eternal priesthood because he was jealous for his God and made atonement for the {Israelites}.'"