1 John 3:10
By this the children of God are discovered, and the children of the devil: whoever works not righteousness, is not of God, neither he who loves not his brother.
1 John 4:8
He who does not love, does not know God; for God is love.
3 John 1:11
Beloved, do not imitate what is evil, but what is good. He who does good, is of God; but he who does evil, has not seen God.
1 John 4:6
We are of God: he who know God, hearkens to us; he who is not of God, hearkens not to us. By this we know the spirit of truth, and the spirit of error.
1 John 4:21
Moreover, this commandment we have from him, that he who loves God, loves his brother, also.
1 John 2:9-10
He who says he is in the light and yet hates his brother, is in the darkness till now.
1 John 2:29
If you know that he is righteous, you know that every one who works righteousness, has been begotten by him.
1 John 3:7-8
Little children, let no one deceive you: he who works righteousness, is righteous, even as He is righteous.
1 John 3:14-15
We know that we have passed away from death to life, because we love the brethren. He who loves not his brother, abides in death.
1 John 4:3-4
And every spirit that does not confess Jesus, is not from God: and this is that spirit of antichrist, which you have heard that it comes, and now is in the world already.
1 John 5:2
By this we know that we love the children of God, when we love God, and keep his commandments.
1 John 5:19
We know that we are of God, and that the whole world lies under the wicked one.