Yet to all who did receive him, to those who believed in his name, he gave the right to become children of God-13 children born not of natural descent, nor of human decision or a husband’s will, but born of God.
1 John 3:1-2
See what great love the Father has lavished on us, that we should be called children of God! And that is what we are! The reason the world does not know us is that it did not know him. 2 Dear friends, now we are children of God, and what we will be has not yet been made known. But we know that when Christ appears, we shall be like him, for we shall see him as he is.
For he chose us in him before the creation of the world to be holy and blameless in his sight, in love5 he predestined us for adoption to sonship through Jesus Christ, in accordance with his pleasure and will-6 to the praise of his glorious grace, which he has freely given us in the One he loves.
For those, we are led by the Spirit of God are the children of God. 15 The Spirit you received does not make you slaves, so that you live in fear again; rather, the Spirit you received brought about your adoption to sonship. And by him, we cry “Abba, Father.” 16 the Spirit himself testifies with our spirit that we are God’s children. 17 Now if we are children, then we are heirs-heirs of God and co-heirs with Christ, if indeed we share in his sufferings in order that we may also share in his glory.
As a father has compassion on his children, so the Lord has compassion on those who fear him;
2 Corinthians 6:16-18
What agreement is there between the temple of God and idols? For we are the temple of the living God. As God has said: “I will live with them and walk among them, and I will be their God, and they will be my people.” 17 Therefore, “Come out from them and be separate, says the Lord. Touch no unclean thing, and I will receive you.” 18 And “I will be a Father to you, and you will be my sons and daughter, says the Lord Almighty.”
But when the set time had fully come, God sent his Son, born of a woman, born under the law, 5 to redeem those under the law, that we might receive adoption to sonship. 6 Because you are his sons, God sent the Spirit of his Son in our hearts, the Spirit who calls out, “Abba, Father.” 7 So you are no longer a slave, but God’s child; and since you are his child, God has made you also an heir.