20 Heb “the eater” (אֹכֵל, ’okhel), a general term for any kind of threat to crops and livelihood. This is understood as a reference to a locust plague by a number of English versions: , “the locust”; “pests”; , “insects.”
21 Heb “and I will rebuke for you the eater and it will not ruin for you the fruit of the ground.”

In other versions

ESVEnglish Standard Version

I will rebuke the devourer for you, so that it will not destroy the fruits of your soil, and your vine in the field shall not fail to bear, says the Lord of hosts.

NIVNew International Version (2011)

I will prevent pests from devouring your crops, and the vines in your fields will not drop their fruit before it is ripe,” says the Lord Almighty.

CSBChristian Standard Bible

I will rebuke the devourer for you, so that it will not ruin the produce of your land and your vine in your field will not fail to produce fruit,” says the Lord of Armies.

NLTNew Living Translation

Your crops will be abundant, for I will guard them from insects and disease. Your grapes will not fall from the vine before they are ripe,” says the Lord of Heaven’s Armies.

LEBThe Lexham English Bible

I will rebuke the devourer for you; it will not destroy the fruit of your soil; your vine in the field will not be unfruitful,” says Yahweh of hosts.

KJV 1900King James Version

And I will rebuke the devourer for your sakes,

And he shall not destroy the fruits of your ground;

Neither shall your vine cast her fruit before the time in the field, saith the Lord of hosts.

Public Domain