The Wordless Book: Dark

Sin is anything that we think, say, or do that does not please God. (At this point I would have the children give examples of sin). 
Why is it so easy for us to tell lies, lose our tempers or be unkind? Because every one of us is born with a nature that is sinful. That means you and I are born with a "want to" sin. Just like this dark heart, all of our hearts are dark due to the sin in our life.
God’s Word says, “All have sinned” (Rom. 3:23). All means every one of us, including you and me. Sin separates you and me from God because He is perfectly good—without any sin at all. God can’t allow sin where He is.
God says sin must be punished. The punishment is to be separated from God forever. 
But God has a wonderful plan so that you and I don’t have to be punished for our sin.