Chapter 24 — Part III: The Decalogue — The First Commandment
Section 5. The Above Words Contain A Command And A Prohibition — (The pastor) should next show that the words just quoted contain a twofold precept, the one mandatory, the other prohibitory. When it is said: Thou shalt not have strange gods before me, it is equivalent to saying: Thou shalt worship me the true God; thou shalt not worship strange gods.