'Adoption' in the Bible

For you did not receive a spirit of slavery to fall back into fear, but you received the Spirit of adoption, by whom we cry out, “Abba, Father!”

And not only that, but we ourselves who have the Spirit as the firstfruits—we also groan within ourselves, eagerly waiting for adoption, the redemption of our bodies.

They are Israelites, and to them belong the adoption, the glory, the covenants, the giving of the law, the temple service, and the promises.

to redeem those under the law, so that we might receive adoption as sons.