God must be the source of our strength. On our own, life is too hard. We get tired. We give up. We fail. But when we trust in him, are able to keep going. Our strength is renewed. What we cannot face on our own, we endure because our strength comes from him.
Christ wants to change us beyond just the surface level; he wants to transform us so deeply that even our patterns of thought are renewed.
The Bible repeatedly tells us God has a plan to deal with our sin. Through his grace and the blood of Jesus, our sin can be removed. Guilt and shame can be taken away.
