Matthew Poole and continuators on Jeremiah 51:39

39 In their heat I will make their feasts , and I will make them drunken, that they may rejoyce, and sleep a perpetual sleep, and not awake, saith the LORD .

When they shall grow hot with Wine, I will put or give, or make them a Feast of another nature. Interpreters judge that the Prophet referreth to the Feast made by Belshazzar, Dan. 5.1. To a thousand of his Lords, when he and his Wives, and Concubines drank Wine in the vessels belonging to the Temple, during which Feast the City was taken.

So they were made drunk with the wine cup of Gods fury, because the Lord had designed them to utter ruine, and destruction, that as men filled with Wine are merry, and shout, and then fall asleep; so the Chaldeans being drunk with the Wine of the Lords wrath, while they were merry with their Cups of Wine might fall into such a sleep as they should never awake out of.

Marginal references: verse 57.