Cyprian of Carthage, Three Books of Testimonies Against the Jews III.80: That innocency asks with confidence, and obtains

In the Epistle of John: “If our heart blame us not, we have confidence towards God; and whatever we ask, we shall receive from Him.” Also in the Gospel according to Matthew: “Blessed are they of a pure heart, for they shall see God.” Also in the twenty-third Psalm: “Who shall ascend into the hill of the Lord? or who shall stand in His holy place? The innocent in hands and of a pure heart.”