In many ways, sin is simply sin. However, sins carry varying weights or repercussions. In fact, the Bible testifies that some sins are greater than others.
Although the blood of Christ cleanseth from all sin, some things cannot merely be undone. With or without forgiveness, sin has certain consequences.
Sin is not to be considered a light matter. In other words, it is not to be mocked. Only a fool would demonstrate this kind of behaviour toward sin.
Sin and those who participate therein anger Lord. In the days of Noah, sin grieved the Lord so badly that it repented God that he had made man on the earth.
The Bible does not always paint man in a positive light, yet it always paints him accurately. According to scripture, there is no man that sinneth not.
