1 John 5:16-17 NIV

16 If anyone sees his brother commit a sin that does not lead to death, he should pray and God will give him life.1 I refer to those whose sin does not lead to death. There is a sin that leads to death.2 I am not saying that he should pray about that.3

References for 1 John 5:16

17 All wrongdoing is sin,4 and there is sin that does not lead to death.5

References for 1 John 5:17