Matthew 13:47-50
47 Again, the kingdom of heaven is like unto a net, that was cast into the sea, and gathered of every kind:
48 Which, when it was full, they drew to shore, and sat down, and gathered the good into vessels, but cast the bad away.
49 So shall it be at the end of the world: the angels shall come forth, and sever the wicked from among the just,
50 And shall cast them into the furnace of fire: there shall be wailing and gnashing of teeth.
The parable of the net let down into the sea, has some points in common with that of the wheat and the tares. It is intended to instruct us on a most important subject, the true nature of the visible Church or Christ.
The preaching of the Gospel was the letting down of a large net into the midst of the sea of this world. The professing church which it was to gather together, was to be a mixed body. Within the folds of the net, there were to be fish of every kind, both good and bad. Within the pale of the Church there were to be Christians of various sorts, unconverted as well as converted, false as well as true. The separation of good and bad was sure to come at last, but not before the end of the world. Such was the account which the great Master gave to His disciples of the churches which they were to found.
It is of the utmost importance to have the lessons of this parable deeply graven on our minds. There is hardly any point in Christianity on which greater mistakes exist, than the nature of the visible Church. There is none, perhaps, on which mistakes are so perilous to the soul.
Let us learn from this parable, that all congregations of professed Christians ought to be regarded as mixed bodies. They are all assemblies containing “good fish and bad,” converted and unconverted, children of God and children of the world, and ought to be described and addressed as such. To tell all baptized people, that they are born again, and have the Spirit, and are members of Christ, and are holy, in the face of such a parable as this, is utterly unwarrantable. Such a mode of address may flatter and please. It is not likely to profit or save. It is painfully calculated to promote self-righteousness, and lull sinners to sleep. It overthrows the plain teaching of Christ, and is ruinous to souls. Do we ever hear such doctrine? If we do, let us remember “the net.”
Finally, let it be a settled principle with us, never to be satisfied with mere outward church-membership. We may be inside the net, and yet not be in Christ. The waters of baptism are poured on myriads who are never washed in the water of life. The bread and wine are eaten and drunk by thousands at the Lord's table, who never feed on Christ by faith. Are we converted? Are we among the “good fish?” This is the grand question. It is one which must be answered at last. The net will soon be “drawn to shore.” The true character of every man's religion will at length be exposed. There will be an eternal separation between the good fish and the bad. There will be a “furnace of fire” for the wicked. Surely, as Baxter says, “these plain words more need belief and consideration than exposition.”
— J.C. Ryle (1816-1900)