Galatians 4:4-5- But when the fullness of time had come, God sent forth his Son, born of woman,born under the law, to redeem those who were under the law, so that we might receive adoption as sons, and because you are sons, God has sent the Spirit of his Son into our hearts, crying, “Abba Father!” So you are no longer a slave, but a son, and if a son, then an heir through God.
Ephesians 1:5- In love he predestined us for adoption to himself as sons through Jesus Christ, according to the purpose of his will.