כי יסיתך אחיך... בסתר לאמר נלכה ונעבדה אלהים אחרים... לא תאבה לו ולא תשמע אליו ולא תחוס עינך עליו ולא תחמול ולא תכסה עליו
The punishment meted out to the meisis, enticer, is very serious and finds no match in the Torah. The fact that the meisis is treated so badly is a clear indication of the egregious nature of his sin. Five negative commandments concerning how we should act with the meisis are derived from the Torah’s unusual directives concerning our relationship with this evil man: we may neither accede to him, nor hearken to him; we may neither have pity on him; nor show any compassion towards him; we may not conceal him. He has committed a grave sin by attempting to…