'Sin' in the Bible

Flee sexual immorality. Every sin that a person commits is outside his body, but the one who commits sexual immorality sins against his own body.

But if anyone thinks he is behaving dishonorably concerning his virgin, if she is past her prime and it ought to be thus, let him do what he wishes. He does not sin. Let them marry.

Now [if you] sin in this way against the brothers and wound their conscience, which is weak, you sin against Christ.

Therefore, if food causes my brother to sin, I will never eat meat {forever}, in order that I may not cause my brother to sin.

Now the sting of death [is] sin, and the power of sin [is] the law.