Roman Catechism 4.24

Chapter 4 — Part I: The Creed — Article II: And in Jesus Christ, His Only Son, Our Lord

Section 24. As man, He is also for many reasons appropriately called our Lord. First, because He is our Redeemer, who delivered us from sin, He deservedly acquired the power by which He truly is and is called our Lord. This is the doctrine of the Apostle: