Bede the Venerable — as excerpted in the Catena Aurea on Mark 8:27-33

“(in Marc. 2, 35) Philip was that brother of Herod, of whom we spoke above, who in honour of Tiberius Cæsar called that town, which is now called Paneas, Cæsarea Philippi. It goes on, And by the way he asked his disciples, saying unto them, Whom do men say that I am?”