Read The Entire Book
Today, many professing Christians have set aside nearly two thirds of God's word as being irrelevant because we now live in the Christian dispensation. Paul tells us that even the OT is of value to us in that it was recorded for our learning. The scriptures taught by Paul??? Why, they were the OT of course, those that pointed to the Christ, the Lamb of God Who takes away the sins of the world! Sounds like we might have been missing something.