Catena Aurea on Luke 22:54–62: Augustine of Hippo

And it is supposed that in the second denial he was addressed by two persons, namely, by the maid whom Matthew and Mark mention, and by another whom Luke speaks of. With respect then to what Luke here relates, And after a little while, &c. Peter had already gone out of the gate, and the cock had crowed the first time, as Mark says; and now he had returned, that, as John says, he might again deny standing by the fire. Of which denial it follows, And Peter said, Man, I am not.