Cyprian of Carthage, Three Books of Testimonies Against the Jews III.15: That we must never murmur, but bless God concerning all things that happen

In Job: “Say some word against the Lord, and die. But he, looking upon her, said, Thou speakest as one of the foolish women. If we have received good things from the Lord’s hand, why shall we not endure evil things? In all these things which happened unto him, Job sinned not with his lips in the sight of the Lord.” Also in the same place: “Hast thou regarded my servant Job? for there is none like unto him in the earth: a man without complaint: a true worshipper of God, restraining himself from all evil.” Of the same thing in the thirty-third Psalm: “I will bless the Lord at all times: His praise shall ever be in my mouth.” Of this same thing in Numbers: “Let their murmuring cease from me, and they shall not die.” Of this same thing in the Acts of the Apostles: “But about the middle of the night Paul and Silas prayed and gave thanks to God, and the prisoners heard them.” Also in the Epistle of Paul to the Philippians: “But doing all things for love, without murmurings and revilings, that ye may be without complaint, and spotless sons of God.”