Proverbs 31:5

Modern

…lest they drink and forget what is decreed, depriving all the oppressed of justice.

Traditional

Lest they drink, and forget the law, and pervert the judgment of any of the afflicted.

Literal

…lest they drink and forget the decree, and pervert the judgment of any of the sons of affliction.

Latin

…et ne forte bibant, et obliviscantur judiciorum, et mutent causam filiorum pauperis.

Hebrew

English

…lest they drink and forget what is decreed, depriving all the oppressed of justice.

Drinking too much wine dulls the senses. A king needs to stay alert and should not drink too much alcohol.

Lemuel, like Agur, might have been from Massa (see study note on Proverbs 30:1). Lemuel’s mother teaches him to control his desires, especially for women and alcohol, so he can rule fairly.
Besides this passage, we know nothing about Lemuel.

Habakkuk 2:5
…and wealth indeed betrays him. He is an arrogant man never at rest. He enlarges his appetite like Sheol, and like Death, he is never satisfied. He gathers all the nations to himself and collects all the peoples as his own.