When humanity sinned and went off the rails, why didn't God just delete us and start over? Here's a quick look at the plan of redemption and the good news of obtaining eternal life through Yeshua.
God did not abandon the human race but summoned them at various times from error and folly into an understanding of truth, leading them from slavery and wickedness into freedom and piety, from iniquity into righteousness, from eternal death into everlasting life. (Apostolic Constitutions)