1 John 5:15-19

And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him.

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.

All unrighteousness is sin: and there is a sin not unto death.

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 we are of God, and the whole world lieth in wickedness.