מֵפִ֣יץ וְ֭חֶרֶב וְחֵ֣ץ שָׁנ֑וּן אִ֥ישׁ עֹנֶ֥ה בְ֝רֵעֵ֗הוּ עֵ֣ד שָֽׁקֶר׃
As a maul, and a sword, and a sharp arrow, So is a man that beareth false witness against his neighbour.
Read halakhic rulings (Jewish law) on Proverbs 25:18: and classical halakhic sources.