'Sons' in the Bible

Therefore, be sure that it is those who are of faith who are sons of Abraham.

For you are all sons of God through faith in Christ Jesus.

so that He might redeem those who were under the Law, that we might receive the adoption as sons.

Because you are sons, God has sent forth the Spirit of His Son into our hearts, crying, “Abba! Father!”

For it is written that Abraham had two sons, one by the bondwoman and one by the free woman.