Mattityahu 12:36-38

Orthodox Jewish Bible

³⁶ But I say to you, that for every careless lashon horah (evil speech) that men speak, they will be called to account on the Yom HaDin (the Day of Judgment).

³⁷ For by your dvarim you will be pronounced tzodek (righteous), and by your dvarim you will be charged with guilt.

³⁸ Then some of the Sofrim and Perushim answered Rebbe, Melech HaMoshiach, saying, Rabbi, we desire to see an ot (miraculous sign) from you.