Tertullian On Prayer He Himself, when tempted by the devil, demonstrated who it is that presides over and is the originator of temptation.[61] Recognitions of Clement IV Therefore our Lord, confirming the worship of one God, answered him: `It is written, Thou shall worship the Lord thy God, and Him only shalt thou serve.'[28] Clementine Homily X "Therefore you shall be able to persuade yourselves with respect to the things that are profitable, if, like charmers, you say to the horrible serpent which lurks in your heart, `The Lord God thou shall fear, and Him alone thou shall serve.'[2]