Matthew 13:42

“And shall cast them into a furnace of fire, etc.] Not a material, but a metaphorical one; denoting the wrath of God, which shall fall upon wicked men, and abide upon them to all eternity: which is sometimes called hell fire, sometimes a lake which burns with fire and brimstone; and here a furnace of fire, expressing the vehemency and intenseness of divine wrath, which will be intolerable; in allusion either to Nebuchadnezzar’s fiery furnace, or as some think, to the custom of burning persons alive in some countries; or rather, to the burning of chaff and stubble, and the stalks of any unprofitable things that grew in the field f803, for the heating of furnaces, and is the very language of…”

“And shall cast them into a furnace of fire--rather, "the furnace of fire": there shall be wailing and gnashing of teeth--What terrific strength of language--the "casting" or "flinging" expressive of indignation, abhorrence, contempt (compare Psa 9:17; Dan 12:2): "the furnace of fire" denoting the fierceness of the torment: the "wailing" signifying the anguish this causes; while the "gnashing of teeth" is a graphic way of expressing the despair in which its remedilessness issues (see Mat 8:12)!”

“Declare unto us - That is, explain the meaning of the parable. This was done in so plain a manner as to render comment unnecessary. The Son of man, the Lord Jesus, sows the good seed - that is, preaches the gospel. This he did personally, and does now by his ministers, his providence, and his Spirit, by all the means of conveying “truth” to the mind. This seed was, by various means, to be carried over all the world. It was to be confined to no particular nation or people. The good seed was the children of the kingdom; that is, of the kingdom of God, or Christians. For these the Saviour toiled and died. They are the fruit of his labors. Yet amid them were wicked people; and all hypocrites and…”

“cast: Mat 3:12, Mat 25:41; Psa 21:9; Dan 3:6, Dan 3:15-17, Dan 3:21, Dan 3:22; Mar 9:43-49; Luk 16:23, Luk 16:24; Rev 14:10, Rev 19:20, Rev 20:10, Rev 20:14, Rev 20:15, Rev 21:8 wailing: Mat 13:50, Mat 8:12, Mat 22:13; Luk 13:28 Matthew 13:43”