The eating of innocent blood is forbidden. These temple practices are emphasized for correct worship of God but also a guidance even in our lives to recognize the sacredness of life designed by God. The Israelites (and we) are warned against apostates who try to lead us away from the Lord and from the Torah, even if they are close family and friends. Hebrew law lays out dire consequences for such people, but only in the context of rigorous judicial review. In our case we do not have a theocratic system, but are still exhorted to reject such temptation.