'Sons' in the Bible

Know therefore that they that are of faith, the same are sons of Abraham.

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

that he might redeem them that were under the law, that we might receive the adoption of sons.

And because ye are sons, God 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 handmaid, and one by the freewoman.