The Book of Proverbs

Whosoever speaketh ill of any thing, bindeth himself for the time to come: but he that feareth the commandment, shall dwell in peace. Deceitful souls go astray in sins: the just are merciful, and shew mercy. [La., Qui detrahit alicui rei ipse se in futurum obligat qui autem timet praeceptum in pace versabitur] - The Book of Proverbs 13:13