Who is God's designated apostle to the Gentiles in the Church Age?
Paul is the designated Apostle to the Gentiles during the Church Age, also called the age of grace. The Pauline letters contain the fundamental truths for salvation, the Christian walk, and the operation of the local church, and Gentiles are to garner these truths from them.
Les explains that in this age of grace, which he calls the Church Age, Paul is the designated Apostle of the Gentiles. Therefore, the fundamental truths for salvation, the Christian walk, and the operation of the local church must come from the Pauline letters. Les stresses this does not mean the rest of the Bible is inappropriate, since Paul himself writes that all Scripture is inspired of God and profitable for reproof and instruction in righteousness. In Romans especially, Les says, there is much that is fundamental for Gentiles, and this is the reason he teaches.