And the remnant of Jacob shall be in the midst of many people as a dew from the LORD, as the showers upon the grass, that tarrieth not for man, nor waiteth for the sons of men. The remnant of Jacob - From the reign of Darius Hystaspes (Ahasuerus, husband of Esther) the Jews were greatly favored. Those who continued in Persia and Chaldea were greatly honored under the protection of Mordecai and Esther. - Calmet. But others consider this as applying to the Maccabees.
As a dew from the Lord - Even during their captivity many of the Jews were the means of spreading the knowledge of the one true God; see Daniel 2:47; Daniel 3:29; Daniel 4:34; Daniel 6:26. This may be the dew from the Lord mentioned here. When the Messiah appeared, the Gospel was preached by them; and it shall again be propagated by their future glorious restoration, Romans 11:12, Romans 11:25.
The grass, that tarrieth not for man - Which grass springs up without the attention and culture of man; לאיש leish, even the best and most skillful of men.
Nor waiteth for the sons of men - לבני אדם libney adam, for the sons of Adam, the first transgressor. The dew and the showers descend on the earth and water it, in order to render it fruitful; and the grass springs up independently either of the worth or wickedness of man. All comes through God's bounty, who causes his sun to shine on the just and the unjust, and his rain to descend on the evil and the good.