For, upon the name (επ ‘ονοματος) of God, the Father and Lord of all, and of our Savior
Jesus Christ, and the holy Spirit, they then receive the washing in water. . .
. the name of God, the Father the Lord of all, is recited over the one opting
to be regenerated, who also repents of their sins; we invoke this name alone as
we lead the one who will be washed to the fount. . . . This washing is also
called an enlightenment, as those who learn these things have their mind
enlightened. And the one who is enlightened is washed also upon the name (επ ‘ονοματος) of Jesus Christ, who was crucified by Pontius Pilate, and
upon the name (επ ‘ονοματος) of the holy Spirit, who
announced beforehand through the prophets all things concerning Jesus.
--Justin,
1 Apol. 61.3, 10, 11-13
. . . Justin appeals to John 3:3 to explain the
significance and purpose of baptism; he also echoes Titus 3:5. (Rafael
Rodríguez, “Baptism,” in The Reception of Jesus in the First Three Centuries,
ed. Chris Keith [London: T&T Clark, 2020], 3:380)