Adam Clarke on Jeremiah 16:8

Thou shalt not also go into the house of feasting - Funeral banquets were made to commemorate the dead, and comfort the surviving relatives; and the cup of consolation, strong mingled wine, was given to those who were deepest in distress, to divert their minds and to soothe their sorrows. These kinds of ceremonies were common among almost all the nations of the world on funeral occasions. The Canaanites, the Jews, the Persians, Arabians, New Zealanders, Huns, etc., etc.