John Gills Exposition of the Bible Commentary - Isaiah 14:8
Yea, the fir trees rejoice at thee, and the cedars of Lebanon ,.... Which by, a prosopopoeia are represented as singing and rejoicing, as inanimate creatures often are in Scripture, these being now in no danger of being cut down, to make way for his armies; see Isaiah 37:34 or to furnish him with timber for shipping, or building of houses: or else these words are to be understood metaphorically of kings and princes of the earth, comparable to such trees, for their height, strength, and... read more
Matthew Henry's Complete Commentary - Isaiah 14:4-23
The kings of Babylon, successively, were the great enemies and oppressors of God's people, and therefore the destruction of Babylon, the fall of the king, and the ruin of his family, are here particularly taken notice of and triumphed in. In the day that God has given Israel rest they shall take up this proverb against the king of Babylon. We must not rejoice when our enemy falls, as ours; but when Babylon, the common enemy of God and his Israel, sinks, then rejoice over her, thou heaven, and... read more