Only Matthew has this explanation of the parable about the fishing net that was just mentioned. Once again, there is a reference to the end times (οὕτως ἔσται ἐν τῇ συντελείᾳ τοῦ αἰῶνος) as in the parable about the weeds. The angels, like with the weeds, would come and separate the evil or bad fish from the righteous or good fish (ἐξελεύσονται οἱ ἄγγελοι καὶ ἀφοριοῦσιν τοὺς πονηροὺς ἐκ μέσου τῶν δικαίων). These angels would then throw the evil ones or the bad fish into the furnace of fire (καὶ βαλοῦσιν αὐτοὺς εἰς τὴν κάμινον τοῦ πυρός), where there would be weeping or lamenting and gnashing or grinding of teeth (ἐκεῖ ἔσται ὁ κλαυθμὸς καὶ ὁ βρυγμὸς τῶν ὀδόντων). These angels burned the fish like they burned the weeds in the earlier parable in chapter 13:42. In fact, the same exact words were used in both parables about the furnace of fire and the weeping and gnashing of teeth. This later was the normal form of mourning or behavior of those who were upset or frustrated.
Only Matthew has this parable about the fishing net. Jesus, via Matthew, makes another comparison about the kingdom of heaven (Πάλιν ὁμοία ἐστὶν ἡ βασιλεία τῶν οὐρανῶν). This time, it was like a fishing net that was thrown into the sea (σαγήνῃ βληθείσῃ εἰς τὴν θάλασσαν). They caught all kinds of different fish (καὶ ἐκ παντὸς γένους συναγαγούσῃ). When this fishing net was full, they pulled it ashore (ἣν ὅτε ἐπληρώθη ἀναβιβάσαντες ἐπὶ τὸν αἰγιαλὸν). Then they sat down (καὶ καθίσαντες) to sort out the fish. They collected the good fish into basket containers (συνέλεξαν τὰ καλὰ εἰς ἄγγη), but they threw out the bad fish (τὰ δὲ σαπρὰ ἔξω ἔβαλον). The details of this fishing expedition, like the sowing in the field speak to an agricultural and fishing community.