John 1:12 KJV

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:
John 1:12, King James Version

In context

11 He came unto his own, and his own received him not.

12 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:

13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.

Galatians 3:26 For ye are all the children of God by faith in Christ Jesus.
Romans 8:14 For as many as are led by the Spirit of God, they are the sons of God.
1 John 3:1 Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not.
2 Corinthians 6:17 Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,
Galatians 4:6 And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.