The Denials

Τρὶς τὸν Κύριον ἀρνησάμενος τῶν ἀποστόλων ὁ ἔξαρχος, τὴν τῶν ἀνθρώπων πάντων ἁμαρτίαν ὑπο ἔδειξε, τρὶς ἀθετησάντων τὸν Κτίσαντα, ἐν τῇ δόσειτῆς πρώτης ἐντολῆς , ἐν τῇ θέσει τοῦ νόμου τοῦ γραστοῦ, ἐν τῇ σαρκώσει τοῦ Λόγου καὶ Θεοῦ ἡμῶν· ἣν τριπλῇ πάλιν μεταγνώσει ἰάσατο, ἀνάλογον τῷ τραύματι πορισάμενος καὶ τὸ φάρμακον, καὶ δείξας ὡς πάντων τῶν κακῶν θεραπεία, ἡ τοῦ Κυρίου γέγονε παρουσία. Ἅγιος Ἰσίδωρος Του Πηλουσιώτου, Βιβλίον Πρῶτον, Ἐπιστολὴ ΤΝϚ’, Σελευκῳ Source: Migne 78.385b

The prince of the Apostles' denial of the Lord three times points to the sin of all men who rejected the Lord three times, in the giving of the first command, in the establishment of the written law, in the putting on of humanity by the Word and God, 1 which three time denial is again healed by penance, which is as the bringing of medicine to a wounded man, for which reason the Lord came, showing care for every evil. Saint Isidore of Pelusium, Book 1, Letter 356, To Seleucus 1 Gen 2.16-17, Exod 32, Jn 1.11