נֹצֵ֣ר פִּ֭יו שֹׁמֵ֣ר נַפְשׁ֑וֹ פֹּשֵׂ֥ק שְׂ֝פָתָ֗יו מְחִתָּה־לֽוֹ׃
He that guardeth his mouth keepeth his life; But for him that openeth wide his lips there shall be ruin.
Read halakhic rulings (Jewish law) on Proverbs 13:3: and classical halakhic sources.