John Calvin Commentary Isaiah 14:3

"And it shall come to pass in the day that Jehovah shall give thee rest from thy sorrow, and from thy trouble, and from the hard service wherein thou wast made to serve," — Isaiah 14:3 (ASV)

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 fully believe his word, especially when the state of our affairs appears to contradict it. But by this method, the Lord chooses to test our faith when he still promises salvation for which all hope has been taken away.

From your sorrow, and from your trembling, and from your hard bondage. He confirms what he has said by a variety of expressions, so that, with doubt removed, we continue to rely on his promises, even when our affairs are desperate. Yet by these same considerations, he also exhorts the Jews to gratitude, that they may never bury in forgetfulness a work of God so excellent and so worthy of remembrance. He expressly intended to mention the yoke and bondage so that the Jews might be fully aware that the Lord would take away these obstructions whenever he pleased, and that they could not at all prevent him from immediately delivering his people when he saw fit.

We should also apply this for our own benefit today, with reference to the wretched bondage and wicked yoke of Antichrist by which Christians are bound. Though they are confined and bound by snares and chains in every direction, they have God as their deliverer, who will quickly remove all difficulties and every kind of trouble; and this should also be extended to all sorrows, distresses, and afflictions.