John Gills Exposition of the Bible Commentary - Job 18:16
His roots shall be dried up beneath ,.... Wicked men are sometimes compared to trees; to trees of the wood, barren, and unfruitful; to trees without fruit, twice dead, plucked up by the roots; and sometimes to green bay trees, very flourishing for a while, and which on a sudden perish, and come to nothing, see Song of Solomon 2:3 , Judges 1:12 ; and such a simile is here used; and by his roots may be meant his family, from whence he sprung, which now should be extinct with him, see ... read more
Matthew Henry's Complete Commentary - Job 18:11-21
Bildad here describes the destruction itself which wicked people are reserved for in the other world, and which, in some degree, often seizes them in this world. Come, and see what a miserable condition the sinner is in when his day comes to fall. I. See him disheartened and weakened by continual terrors arising from the sense of his own guilt and the dread of God's wrath (Job 18:11, 12): Terror shall make him afraid on every side. The terrors of his own conscience shall haunt him, so that he... read more