Sin creates a a deep inconsistency between who we are, and who we were created to be. The law in the Old Testament shows us our sin and points us to God for saving and healing. Many died because of Adam's sin, but many have been saved because of God's grace- Jesus' death on the cross.
Sin and righteousness are two sides of a coin. We feel the presence of Christ and the pressure of sin. We delight in the peace we experience when we have been made right with God, but we still struggle daily with problems that often help us grow. If we remember the two sides of this Christian coin, we will not become discouraged when facing life's trials. We will learn to depend on the power given to us from Christ, who lives in us.
The book of Romans says we should rejoice in suffering because we know God is using life's difficulties and Satan's attacks to build our character. Problems/suffering help us grow. We know that God is using life's difficulties to build our character, develop our perseverance which in turn strengthens our character and deepens our trust in God.
God gave His only son to suffer and die on the cross in order to save us from sin. He allows us to suffer to save us by building character, which deepens our trust in God. Romans 5:3-4