1 John 3:14; 1 John 5:16

1 John 3:14

14 We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death.

1 John 5:16

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.