What must a person do in the age of grace?
A person must simply believe the Gospel. That is all. No other work is required; believing the Gospel is all. When one believes the Gospel, God does everything else, which was unheard of throughout previous thousand years of human history. This is the sole requirement for the age of grace.
Les explains that after Israel rejected their Messiah and the promised Kingdom, God opened the windows of heaven and brought in what is called the grace of God. In this age of grace, all a person has to do is believe the Gospel; that is all. When a person believes the Gospel, God does everything else, which was unheard of throughout the previous thousand years of human history. Les also notes that the age of grace has ended, and God will pour out His wrath in the final seven years dealing with Israel's prophecy, followed by the millennial reign of Christ.