When God created people, He gave us a job to do. We were made to love God, love people, and take care of the beautiful world God created.
Instead of living God's plan for us, we chose to sin. We chose evil.
I sin all the time. I sin when I do wrong things. I sin when I think wrong things. I sin when I say wrong things. Sin always hurts me. Sin hurts other people and it hurts our beautiful world, too.
Sin is too heavy for me. I can't get rid of it by myself.