To all the children have faith that Christ is Jesus you are children of God, bring peace and love to your brothers and sisters you are children of God.
1 John 5:1
Whosoever believeth that Jesus is the Christ, is born of God. And every one that loveth him who begot, loveth him also who is born of him.
Galatians 3 26-29
 For you are all the children of God by faith, in Christ Jesus.  For as many of you as have been baptized in Christ, have put on Christ.  There is neither Jew nor Greek: there is neither bond nor free: there is neither male nor female. For you are all one in Christ Jesus.  And if you be Christ’ s, then are you the seed of Abraham, heirs according to the promise.
Behold how they are numbered among the children of God, and their lot is among the saints.
Blessed are the peacemakers: for they shall be called children of God.
Neither can they die any more: for they are equal to the angels, and are the children of God, being the children of the resurrection.
Because the creature also itself shall be delivered from the servitude of corruption, into the liberty of the glory of the children of God.
1 John 3:10
In this the children of God are manifest(obvious), and the children of the devil. Whosoever is not just, is not of God, nor he that loveth not his brother.
1 John 5:2
In this we know that we love the children of God: when we love God, and keep his commandments.
And God said again to Moses: Thus shalt thou say to the children of Israel: The Lord God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, hath sent me to you: This is my name for ever, and this is my memorial unto all generations.
Who said to them: Amen, I say to you, there is no man that hath left house, or parents, or brethren, or wife, or children, for the kingdom of God’ s sake,
1 John 4:4
You are of God, little children, and have overcome him. Because greater is he that is in you, than he that is in the world.
Galatians 3: 6 – 9
 As it is written: Abraham believed God, and it was reputed to him unto justice.  Know ye therefore, that they who are of faith, the same are the children of Abraham.  And the scripture, foreseeing, that God justifieth the Gentiles by faith, told unto Abraham before: In thee shall all nations be blessed.  Therefore they that are of faith, shall be blessed with faithful Abraham.
Galatians 3: 13-14
 Christ hath redeemed us from the curse of the law, being made a curse for us: for it is written: Cursed is every one that hangeth on a tree:  That the blessing of Abraham might come on the Gentiles through Christ Jesus: that we may receive the promise of the Spirit by faith.