I go a fishing (upagw alieuein). The present active infinitive alieuein expresses purpose as often. It is a late verb from alieu (fisherman) and occurs in Jeremiah 16:16 , in Philo, Plutarch, and one papyrus. Peter's proposal was a natural one. He had been a fisherman by practice and they were probably waiting in Galilee for the appointed meeting with Christ on the mountain. Andrew and Peter, James and John were fishermen also. Peter's proposition met a ready response from all. They took (epiasan). First aorist active indicative of piazw, Doric form for piezw, to catch.