Charles Spurgeon Commentary Jeremiah 30:9-10

"but they shall serve Jehovah their God, and David their king, whom I will raise up unto them. Therefore fear thou not, O Jacob my servant, saith Jehovah; neither be dismayed, O Israel: for, lo, I will save thee from afar, and thy seed from the land of their captivity; and Jacob shall return, and shall be quiet and at ease, and none shall make him afraid." — Jeremiah 30:9-10 (ASV)

But they shall serve the LORD their God, and David their king, whom I will raise up to them. Therefore fear not, O my servant Jacob, says the LORD; nor be dismayed, O Israel: for, behold, I will save you from afar, and your seed from the land of their captivity; and Jacob shall return, and shall be at rest, and be quiet, and no one shall make him afraid.

There are great things in store for God's ancient people Israel, and no less are laid up for God's spiritual Israel, for by them the greatest fulfillment of the promise will be realized. They will indeed be quiet, and no one will make them afraid. Note that these are the very men who had their hands on their loins, and whose faces were pale with fright. These are the ones who were ready to die of heartbreak; yet even they will, by the rich grace of God, be at rest, and be quiet, and no one will make them afraid. I wish that we could all realize the fulfillment of that promise even now; and that our gracious God would dwell with us as he is accustomed to abide with those who bear his name, and thus give us that blessed quiet and rest that we so much need.