What is the Bible trying to do from Genesis 3 to the end?

Les teaches that from the time man is created and falls in Genesis 3, all the way to the end of the Book, Scripture is trying to bring about the salvation of a fallen human race. He explains that Christ can be found in one form or another on almost every page from cover to cover, because this is God's main concern—that the human race can find salvation. The long-suffering and patience of the Lord is salvation, as Paul also wrote. Peter, steeped in Judaism, legalism, temple worship, and the covenant promises, had a hard time admitting that God was no longer dealing with Israel on the covenant promises, but was instead out to bring salvation to the whole human race. Even Peter found some things hard to understand; the unlearned and unstable twist the Scriptures to their own destruction.