Justin Martyr, First Apology 66:
.
. . the washing that is for the remission of sins and for rebirth (λουσαμένῳ τὸ
ὑπὲρ ἀφέσεως ἁμαρτιῶν καὶ εἰς ἀναγέννησιν λουτρὸν), and unto regeneration, and
who is so living as Christ has enjoined. (St. Justin Martyr: The First and
Second Apologies [trans. Leslie William Barnard; New York: Paulist Press,
1997], 70)