1 John 5:17
All wrongdoing is sinful, and [yet] there is a situation where [a person's] sin does not lead [him] to [spiritual] death.
1 John 3:4
Every person who practices a life of sin is also breaking [God's] law, for sin is law-breaking.
1 John 5:16
If anyone [of you] observes his brother [or sister] sinning [in a way that would not lead] to [spiritual] death, he should ask [God, in prayer, to help that person], and God will give him [spiritual] life, [that is], to such ones, provided their sin is not leading to [spiritual] death. There is such a sin that leads to [spiritual] death. [See Heb. 6:4-6; I Tim. 5:6; Heb. 10:26-27; II Pet. 2:20-22]. I am not suggesting that you should ask [God, in prayer] about such a situation.
Romans 5:20-21
Now the law of Moses was introduced [into the world] in order to cause sin to increase [i.e., it defined many things to be wrong that were previously not regarded as sin]. But with the increase of sin, God's unearned favor increased all the more.
James 1:15
Then, when the evil desire has conceived, it gives birth to sin. And when sin is fully grown, it produces [spiritual] death.
James 4:7-10
So, you should submit yourselves to God, but oppose the devil, and he will flee from you.
1 John 2:1
My little children [i.e., dear ones], I am writing this to you so that you will not sin anymore. But if anyone does sin, we have Someone to go to the Father on our behalf; it is Jesus Christ, the [only] righteous One.