1 Cyprian, Caecilius, Primus, Polycarp, Nicomedes, Lucilianus, Successus, Sedatus, Fortunatus, Januarius, Secundinus, Pomponius, Honoratus, Victor, Aurelius, Sattius, Petrus, another Januarius, Saturninus, another Aurelius, Venantius, Quietus, Rogatianus, Tenax, Felix, Faustinus, Quintus, another Saturninus, Lucius, Vincentius, Libosus, Geminius, Marcellus, Iambus, Adelphius, Victoricus, and Paulus, to Felix the presbyter, and to the peoples abiding at Legio and Asturica, also to Laelius the deacon, and the people abiding at Emerita, brethren in the Lord, greeting.
When we had come together, dearly beloved brethren, we read your letters, which according to the integrity of your faith and your fear of God you wrote to us by Felix and Sabinus our fellow bishops, signifying that Basilides and Martial, being stained with the certificates of idolatry, and bound with the consciousness of wicked crimes, ought not to hold the episcopate and administer the priesthood of God; and you desired an answer to be written to you again concerning these things, and your solicitude, no less just than needful, to be relieved either by the comfort or by the help of our judgment.
Nevertheless to this your desire not so much our counsels as the divine precepts reply, in which it is long since bidden by the voice of Heaven and prescribed by the law of God, who and what sort of persons ought to serve the altar and to celebrate the divine sacrifices. For in Exodus God speaks to Moses, and warns him, saying, “Let the priests which come near to the Lord God sanctify themselves, lest the Lord forsake them.” And again: “And when they come near to the altar of the Holy One to minister they shall not bring sin upon them, lest they die.” Also in Leviticus the Lord commands and says, “Whosoever has any spot or blemish upon him, shall not approach to offer gifts to God.”
Source: The Epistles of Cyprian (New Advent)