עָרֵ֣ב לָ֭אִישׁ לֶ֣חֶם שָׁ֑קֶר וְ֝אַחַ֗ר יִמָּֽלֵא־פִ֥יהוּ חָצָֽץ׃
Sabroso es al hombre el pan de mentira; Mas después su boca será llena de cascajo.
Rashi on Proverbs
Bread of falsehood is sweet to a man Adultery with a married woman.
Rashi on Proverbs
but afterwards his mouth will be filled with gravel Heb. חצץ, fine pebbles. Similarly, (Lam. 3:16): “And He has made my teeth grind on gravel (בחצץ).”