Jesus Christ taught his disciples in the Sermon on the Mount: “Just let your word Yes mean Yes, your No, No; for what is in excess of these is from the wicked one. ”
Jeesus Kristus õpetas oma jüngreid mäejutluses: „Iga teie„ jah ” olgu „jah ” ja iga„ ei ” olgu „ei ”, aga mis üle selle, see on kurjast ”.