1 Peter 4:18: And "If The Righteous Is Scarcely Saved, What Will Become Of The Ungodly And The Sinner?"
Any time that you are reading something in the New Testament, and the author quotes a verse from the Old Testament, it is important. It is Scripture's way of underlining or highlighting a point. It is helpful in understanding the doctrine of our salvation to see how the Old Testament and the New Testament describe it. This is what Peter is doing for us here in this verse.