To continue thinking about the restoration process…
Through people like Noah, Abraham and David God’s plan flowed. Though the Law and the prophets we can see the restoration process unfold. Though out the Old Testament we see restoration and redemption through the sacrifices and the keeping of the Law. When the people drew near to God, there were blessings, when the people fell away there were consequences. The prophets foretold of the Messiah, the one who was coming as the fulfillment of the the law. We see the restoration process completed in the birth, life, death, and resurrection of Jesus Christ.
It is through Christ that our sins are washed away. It is through Christ that our relationship with God is restored. It is through Christ that we are set free.
Why God? Because He cared enough that He sent His Son to die on the cross so that you I and might have a restored relationship with the creator of universe.