Lamentations 3:14-15

The prophet’s contemporaries mocked and ridiculed him constantly. He had become full of bitter experiences, like poison, which the Lord had given him to drink (cf. Job 9:18).

"Wormwood is the name given to certain plants used for imparting a bitter flavor to some drinks; the name has no connection with either worm or wood." [Note: Ellison, p. 718.]