Matthew 12:31
I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.
1 Corinthians 6:9-11
What! do you not know that the wicked will not inherit the Realm of God? Make no mistake about it; neither the immoral nor idolaters nor adulterers nor catamites nor sodomites
1 John 1:7
but if we live and move within the light, as he is within the light, then we have fellowship with one another, and the blood of Jesus his Son cleanses us from every sin.
1 John 1:9
if we confess our sins, he is faithful and just, he forgives our sins and cleanses us from all iniquity;
1 John 2:1-2
My dear children, I am writing this to you that you may not sin; but if anyone does sin, we have an advocate with the Father in Jesus Christ the just;