1 John chapter 5

By this we know that we love the children of God, when we love God, and keep his commandments.

For whatsoever is born of God overcometh the world: and this is the victory that overcometh the world, even our faith.

This is he that came by water and blood, even Jesus Christ; not by water only, but by water and blood. And it is the Spirit that beareth witness, because the Spirit is truth.

And there are three that bear witness in earth, the Spirit, and the water, and the blood: and these three agree in one.

He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.

He that hath the Son hath life; and he that hath not the Son of God hath not life.

And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us:

If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it.

We know that whosoever is born of God sinneth not; but he that is begotten of God keepeth himself, and that wicked one toucheth him not.

And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.