On the day that the LORD gives you rest from your pain and torment, and from the hard labor into which you were forced,
3. And it shall be in that day. He adds a confirmation of the former promises. In this way the Lord provides for our weakness; for we find it difficult to render a full belief to his word, especially when the state of our affairs appears to contradict it.
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.
Commenting on Isaiah 14:1-3
And it shall come to pass in the day that the Lord shall give thee rest from thy sorrow,.... In captivity, and on account of that, being out of their own land, deprived of the free exercise of their religion, and at a distance from the house of God, and continually hearing the reproaches and blaspheming of the enemy, and seeing their idolatrous practices, and...