Fishing goes back to the earliest of times. The Nile River in Egypt abounded in fish, and the fishing industry was very profitable there. In ancient times fish were usually caught with either a hook, a spear, or a net. In Israel the Sea of Galilee was famous for its quantities and types of fish. In fact the "Fish Gate" was so named because of the large amounts of fish brought inside Jerusalem to its markets. Fishing was very strenuous work, especially casting nets during the day or dragging nets at night as they rowed their wooden boats. many of Jesus' disciples were fishermen and He often used analogies from this occupation.
"Now when he had left speaking, he said unto Simon, Launch out into the deep, and let down your nets for a draught. And Simon answering said unto him, Master, we have toiled all the night, and have taken nothing: nevertheless at thy word I will let down the net. And when they had this done, they inclosed a great multitude of fishes: and their net brake. And they beckoned unto their partners, which were in the other ship, that they should come and help them. And they came, and filled both the ships, so that they began to sink. When Simon Peter saw it, he fell down at Jesus' knees, saying, Depart from me; for I am a sinful man, O Lord. For he was astonished, and all that were with him, at the draught of the fishes which they had taken: And so was also James, and John, the sons of Zebedee, which were partners with Simon. And Jesus said unto Simon, Fear not; from henceforth thou shalt catch men. And when they had brought their ships to land, they forsook all, and followed him."
"The kingdom of heaven is like unto a net, that was cast into the sea, and gathered of every kind: Which, when it was full, they drew to shore, and sat down, and gathered the good into vessels, but cast the bad away. So shall it be at the end of the world: the angels shall come forth, and sever the wicked from among the just, And shall cast them into the furnace of fire: there shall be wailing and gnashing of teeth."