What is sin - why does it matter?

"And the LORD God commanded the man, saying , Of every tree of the garden thou mayest freely eat : But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die ."

(Genesis 2:16-17)

 

"Give ear , O ye heavens, and I will speak ; and hear , O earth, the words of my mouth. My doctrine shall drop as the rain, my speech shall distil as the dew, as the small rain upon the tender herb, and as the showers upon the grass: Because I will publish the name of the LORD: ascribe ye greatness unto our God. He is the Rock, his work is perfect: for all his ways are judgment: a God of truth and without iniquity, just and right is he."

(Deuteronomy 32:1-4)

 

"Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned."

(Romans 5:12)

 

"For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord."

(Romans 6:23)

 

"I came not to call the righteous, but sinners to repentance." 

(Luke 5:32)