John 1:12-13, “But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.” Romans 8:16-17, “The Spirit itself beareth witness with our spirit, that we are the children of God: And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together.”
Commentary: Those receiving Christ Jesus have the power to become sons of God literally, because they have believed upon God and received Salvation by Jesus Christ. Being born of God means literally from God, not from blood as we know it (such as genetics necessarily), but by the Blood of Christ Jesus. We as Christians are not descendant from the will of flesh or the will of man, but are given as the Will of God. This is presumed as being born again, which Jesus verifies in John 3:5-6, which states that one must be born of water and the Spirit to be able to enter the Kingdom of God. Those born of the Spirit are now known as spirit (as in spirit being from God).
Perhaps one determines this is the same as mysticism; however, that argument does not view the other point-of-view, which says that His Spirit translates spiritual things to our spirits (therefore, people are not mystics). This is the message from Paul to the Romans. Paul also explained to the Galatians people in Galatians 3:26 that those who have faith in Christ Jesus are children of God.
The power to be called sons or children of God came via promise from God to Isaiah to tell His People, in which a special everlasting name is given unto God’s People who become His sons (Isaiah 56:5). This is a marvelous benefit that we will receive a special name, and His People have the promise of being written in the Lamb’s Book of Life (One is to wonder if that special name will also be written in there and we have it presented to us)(See Luke 10:20; Revelation 3:5; 20:12-15). Most Jewish law prohibited the inheritance of something to be assigned to females; however, Paul states here a generality, which is to suppose that God allows both male and female to inherit the promise of sonship, for all are one in Christ Jesus (Galatians 3:28).
Such sons of God are heirs of an incorruptible inheritance, which excels all other privileges. It is the supercession and/or succession of the justification and remission of sins. Such privilege comes upon people of any generation of any heritage who has believed upon Jesus Christ for Salvation and made righteous before God by His Saving Grace (See again Galatians 3:28). This is likely the highest greatness man can reach, and most certainly not of one that dwells again on power, but dwells on the person of Jesus Christ, a much higher thing than power, especially in purposeful submission unto God as the supreme being and limiting oneself to the worship of God alone, rooting out all idolatry (See Luke 12:32; 22:29-30; Acts 26:18; Galatians 3:29; 4:7; Ephesians 3:6; Hebrews 6:17; 1 Peter 1:4; Matthew 25:21; Revelation 3:21; 21:7; indirectly – 1 John 3:10).