Matthew Poole and continuators on John 21:3

3 Simon Peter saith unto them, I go a fishing . They say unto him, We also go with thee. They went forth, and entred into a ship immediately; and that night they caught nothing .

Peter and divers others were Fisher-men, as we have formerly heard; and had boats which they so imployed. Tho they were called to the work of the Ministry, yet Churches not yet being gathered and Constituted, able to maintain them, they did not judge it unlawful to imploy themselves in honest vocations, which might bring in something of a livelihood; no more did Paul afterward.

The others resolve to go with him; they went, but that night caught nothing; the Providence of God so ordering it, that Christs Divine Power might be seen, in commanding fish into their nets.