Catechism Paragraph 228
Part 1:
THE PROFESSION OF FAITH
Section 2: THE CREEDS
Chapter 1: I BELIEVE IN GOD THE FATHER
Article : IN BRIEF
Section 2: THE CREEDS
Chapter 1: I BELIEVE IN GOD THE FATHER
Article : IN BRIEF
"Hear, O Israel, the LORD our God is one LORD..." (Dt 6:4; Mk 12:29). "The supreme being must be unique, without equal. . . If God is not one, he is not God" (Tertullian, Adv. Marc., 1, 3, 5: PL 2, 274).