CCC 2087
Life in Christ›SECTION TWO THE TEN COMMANDMENTS›CHAPTER ONE YOU SHALL LOVE THE LORD YOUR GOD WITH ALL YOUR HEART, AND WITH ALL YOUR SOUL, AND WITH ALL YOUR MIND›I. "You Shall Worship the Lord Your God and Him Only Shall You Serve"
Our moral life has its source in faith in God who reveals his love to us. St. Paul speaks of the "obedience of faith" as our first obligation. He shows that "ignorance of God" is the principle and explanation of all moral deviations. Our duty toward God is to believe in him and to bear witness to him.