Reference for Proverbs 26:26

תִּכַּסֶּ֣ה שִׂ֭נְאָה בְּמַשָּׁא֑וֹן תִּגָּלֶ֖ה רָעָת֣וֹ בְקָהָֽל׃

Though his hatred be concealed with deceit, His wickedness shall be revealed before the congregation.