John Calvin Commentary Lamentations 2:22

"Thou hast called, as in the day of a solemn assembly, my terrors on every side; And there was none that escaped or remained in the day of Jehovah`s anger: Those that I have dandled and brought up hath mine enemy consumed." — Lamentations 2:22 (ASV)

Here he uses a most appropriate metaphor to show that the people had been brought to dire straits, for he says that terrors had surrounded them from every side, as when a solemn assembly is called. They sounded the trumpets when a festival was near, so that all might come up to the Temple.

Just as many groups of people were accustomed to come to Jerusalem on feast days—for when the trumpets were sounded, all were called—so the Prophet says that terrors had been sent by God from every direction to distress the miserable people. He quotes, You have, then, called my terrors all around—how?—as to a feast-day, the day of the assembly. This is because מועד, muod, means the assembly, the place, and the appointed time.

But we must always keep in mind what I have already mentioned: although enemies terrified the Jews, this terror was to be attributed to God. This was so that each person might acknowledge that the Chaldeans had not come by chance, but through the secret impulse of God.

He afterward adds, in the day of Jehovah’s wrath (he changes the person) there was none alive or remaining; indeed, he says, the enemy has consumed those whom I had nursed and brought up. Here he attributes to enemies what he had previously said was done by God, but in this sense: he understood God as the chief author, and the Chaldeans as the ministers of His vengeance.