John 1:44 - Ellicott's Commentary On The Whole Bible

Of (or rather, from) Bethsaida, is added as one of the minute touches of local knowledge which give to this Gospel the colour and vividness that an eye-witness only could impart. It explains the meeting. Philip was going home, and Bethsaida was on the way which Jesus would naturally take from Bethania to Cana (John 2:1-2). It explains, too, the process by which Philip passed from Messianic hope to a full belief in the Christ. He was a fellow townsman of Andrew and Peter. These two had talked together of ancient prophecy and future expectation. One had announced to the other in striking language, “We have found the Messias,” and it is with the same word that Philip tells the good news to Nathanael. This “Bethsaida of Galilee,” as it is called in describing Philip in John 12:21, is thus distinguished from the Bethsaida Julias, which was on the eastern side of the lake. (See Jos. Ant. xviii. 2, § 1, and comp. Note on Luke 9:10.)