The earliest reference to what might be the Comma appears by the 3rd-century Church father Cyprian (died 258), who in Treatise I section 6 quoted John 10:30 against heretics who denied the Trinity and added: "Again it is written of the Father, and of the Son, and of the Holy Spirit, 'And these three are one.'" Daniel B. Wallace notes that although Cyprian uses 1 John to argue for the Trinity, he appeals to this as an allusion via the three witnesses—"written of"—rather than by quoting a proof-text—"written that". In noting this, Wallace is following the current standard critical editions of the New Testament (NA27 and UBS4) which consider Cyprian a witness "against" the Comma. They would not do this were they to think him to have quoted it. So even though some still think that Cyprian referred to the passage, the fact that other theologians such as Athanasius of Alexandria and Sabellius and Origen never quoted or referred to that passage is one reason why even many Trinitarians later on also considered the text spurious, and not to have been part of the original text.