John Gills Exposition of the Bible Commentary - Isaiah 14:1
For the Lord will have mercy on Jacob, will yet choose Israel ,.... While the Jews were in captivity, the Lord seemed to have no pity for them, or compassion on them, and it looked as if he had rejected them, and wholly cast them off; but by delivering them from thence, he showed that he had a merciful regard unto them, and made it to appear that they were his chosen people, and beloved by him: and this is a reason why Babylon should be destroyed, and her destruction be no longer deferred,... read more
Matthew Henry's Complete Commentary - Isaiah 14:1-3
This comes in here as the reason why Babylon must be overthrown and ruined, because God has mercy in store for his people, and therefore, 1. The injuries done to them must be reckoned for and revenged upon their persecutors. Mercy to Jacob will be wrath and ruin to Jacob's impenitent implacable adversaries, such as Babylon was. 2. The yoke of oppression which Babylon had long laid on their necks must be broken off, and they must be set at liberty; and, in order to this, the destruction of... read more