The explanation of
St. John Baptist’s words in the Fourth Gospel is to be found,
indeed, in the same Gospel (i. 27) and in the other three Gospels.
See Matt. iii. 11; S. Mark i. 7; S. Luke iii.
16. In S. John i. 30, the Baptist says of Jesus Christ not
merely “πρότερός
μου ἦν” but “πρῶτός
μου ἦν”—i.e.
“first in relation to me” (and every other human being),
“the principle of my very being.” The Arians
understood the phrase as if the ordinary comparative, suitable for
expressing the ordinary priority of human beings to each other, had
been used.