Why sins
AS A CHRISTIANS WHY SIN?
For it is written in the Bible "He that committeth sin is a devil; for the devil sinneth from the beginning. For this purpose the son of God was manifest, that he might destroy the works of the devil."
(1st john 3:8)
We sin because it's in our nature to sin.
(1 John 1:9-10 NIV) If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness. {10} If we claim we have not sinned, we make him out to be a liar and his word has no place in our lives.