The Greek noun agra (Ἄγρα) refers to the act of catching or hunting, and specifically to a catch of fish. It appears in the New Testament in Luke 5:4 and 5:9, describing the miraculous catch of fish when Jesus directed Peter to cast his nets into the deep. The word emphasizes the result and product of the catching activity — the haul itself.
The miraculous catch (agra) of fish in Luke 5 is the context for one of the most important calls in the New Testament. Peter, a professional fisherman who had fished all night and caught nothing, obeyed Jesus' instruction to "put out into deep water" — and the resulting catch was so large it began to sink two boats. Peter's response was not celebration but immediate, crushing awareness of his own unworthiness: "Go away from me, Lord; I am a sinful man!" (Luke 5:8). And Jesus' response was the call: "Don't be afraid; from now on you will fish for people" (v. 10). The agra — the miraculous catch — became the parable of ministry itself: total dependence on Christ's direction, abundance from apparent failure, and the willingness to leave everything and follow.