Joel
Joel 1:15BSB·traditional attribution

Alas for the day! For the Day of the LORD is near, and it will come as destruction from the Almighty.

John Calvin Reformed @genevareformer

It now follows, Alas the day! for nigh is the day of Jehovah. Here the Prophet, as it was at first stated, threatens something worse in future than what they had experienced. He has hitherto been showing their torpidity; now he declares that they had not yet suffered all their punishments, but that there was something worse to be feared, except they turned seasonably to God.

Matthew Henry Presbyterian @wholebiblehenry

We have observed abundance of tears shed for the destruction of the fruits of the earth by the locusts; now here we have those tears turned into the right channel, that of repentance and humiliation before God. The judgment was very heavy, and here they are directed to own the hand of God in it, his mighty hand, and to humble themselves under it. Here is, I.

Commenting on Joel 1:14-20

John Gill Reformed Baptist @doctorgill

Alas for the day! for the day of the Lord is at hand,.... A time of severer and heavier judgments than these of the locusts, caterpillars, &c. which were a presage and emblem of greater ones, even of the total destruction of their city, temple, and nation, either by the Chaldeans, or by the Romans, or both: and as a destruction from the Almighty shall...