'Vinegar' in the Bible

he must separate himself from wine and strong drink, he must drink neither vinegar made from wine nor vinegar made from strong drink, nor may he drink any juice of grapes, nor eat fresh grapes or raisins.

Later during the mealtime Boaz said to her, "Come here and have some food! Dip your bread in the vinegar!" So she sat down beside the harvesters. Then he handed her some roasted grain. She ate until she was full and saved the rest.

They put bitter poison into my food, and to quench my thirst they give me vinegar to drink.

Like vinegar to the teeth and like smoke to the eyes, so is the sluggard to those who send him.

Like one who takes off a garment on a cold day, or like vinegar poured on soda, so is one who sings songs to a heavy heart.