Sin is missing God's mark. Sin is offending the God whose laws you've broken. SO, just as the word suggests, sometimes this is a regular thing. The word also includes the penalty for the offence that we're guilty of. There isn't only the committing of sin, an offence against God, but also the consequences for doing it.
Sin always has an expensive price tag.
David would be a good example to testify that sin isn't without a price or consequences. I mentioned of how in Psalm 51 he described his sin as an offence to God, but he also testifies in Psalm 51 of the penalty of his sin. Turn to Psalm 51 if you will. As I look at Psalm 51 I see that there were seven affects sin had in David's life. David felt dirty.