John 21:2 - Joseph Benson’s Commentary on the Old and New Testaments

There were together Namely, in one house; Simon Peter, and Thomas, &c. Doubtless they often met and conversed together about the great things which they had seen and heard during the three years in which they had attended on Christ as his disciples, and especially concerning the late events of which they had been eye-witnesses, namely, the death and resurrection of their Master. And Christ chose to manifest himself to them when they were assembled; not only to countenance Christian society, but that they might be joint witnesses of the same matters of fact, and so might corroborate one another's testimony. Here were seven together, to attest what follows. One of these was Thomas, who is named next to Peter, as if he now kept closer to the meetings of the apostles than ever, in consequence of the rebuke and advice he had received from Christ. Another was Nathanael, whom we have not met with since we considered the first chapter of this gospel. Some, however, think he was the same with Bartholomew, one of the twelve. The two not named are supposed to be Philip of Bethsaida, and Andrew of Capernaum.