John 1:12 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:
1 John 3:10 In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
1 John 5:2 By this we know that we love the children of God, when we love God, and keep his commandments.