Sin means a lot of things to a lot of different individuals. Scripture has many definitions of sin, and many passages that help us clarify the meaning of sin. Starting off this discussion I will post what I see as the scriptural definition of sin. I would hope that many others will do the same in this most important issue. Sin, as I see Scripture defining it from the many passages concerning it , would be best understood in the following light. Sin is the willful transgression of a known commandment of God.