John Chrysostom
Catena Aurea · Johannesevangelium 1
The day following Jesus would go forth into Galilee, and findeth Philip, and saith unto him, Follow me. Now Philip was of Bethsaida, the city of Andrew and Peter. Philip findeth Nathanael, and saith unto him, We have found him, of whom Moses in the law, and the prophets, did write, Jesus of Nazareth, the son of Joseph. And Nathanael said unto him, Can there any good thing come out of Nazareth? Philip saith unto him, Come and see.
(Hom. xx. 1) Observe, He did not call them, before some had of their own accord joined Him: for had He invited them, before any had joined Him, perhaps they would have started back: but now having determined to follow of their own free choice, they remain firm ever after. He calls Philip, however, because he would be known to him, from living in Galilee. But what made Philip follow Christ? Andrew heard from John the Baptist, and Peter from Andrew; he had heard from no one; and yet on Christ saying, Follow Me, was persuaded instantly. It is not improbable that Philip may have heard John: and yet it may have been the mere voice of Christ which produced this effect.