1 John 5:15-17

King James Version

¹⁵ And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him.

¹⁶ 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.

¹⁷ All unrighteousness is sin: and there is a sin not unto death.