The Greek word translated as “sin” means “to miss the mark.”
When we sin, we miss the mark or fall short of the standard set by
God.
Sin originated in Satan (Isaiah 14:12-14), and entered the world
through Adam and Eve. All people are sinners (see Romans 3:23). People do not
like to admit that they are sinners.
This is a primary reason
that many people reject Christianity. If they accept Christ, they must turn
away from sin. They don’t want to stop sinning. So they invent all sorts of
reasons to deny the truth of Christianity.
Sin results in spiritual blindness (see John 9:39), a hardened
conscience (see Ephesians 4:19), broken communication with God (see Proverbs
15:29), heartache and problems in the world, bondage and death (see Romans
6:20-23), and eternal separation from God (see Luke 12:15).
Confession of sin is necessary both for salvation (see Romans
10:9,10) and for daily fellowship—the daily walk with Christ (see John
13:6-10).
( find more in : www.missionstraining.org)