Mattithyahu (Matthew) 5:22-23, 25-26

But I say to you that whoever is wroth with his brother without a cause shall be liable to judgment. And whoever says to his brother, ‘Raka!’ shall be liable to the Sanhedrin. But whoever says, ‘You fool!’ shall be liable to fire of GĕHinnom. “If, then, you bring your gift to the slaughter-place, and there remember that your brother holds whatever against you

Be well-minded with your opponent, promptly, while you are on the way with him, lest your opponent deliver you to the judge, and the judge to the officer, and you be thrown into prison. “Truly, I say to you, you shall by no means get out of there till you have paid the last penny.