In cold weather, when it is most seasonable and necessary. As vinegar upon nitre, which dissolves the nitre, and makes it useless and ineffectual. So is he, he is no less absurd and impertinent, that singeth songs to an heavy heart; whose grief is not relieved, but increased by it, as common experience showeth, and divers learned authors have observed.
Related Commentaries of Proverbs 25:20
Proverbs 25:20
20 As he that taketh away a garment in cold weather, and as vinegar upon nitre, so is he that singeth songs to an heavy heart.