Leviticus 19:16

A talebearer. That is, of tales likely to breed mischief, because of being either untrue or detrimental to the person concerned. The rabbis taught that there were three sins that remove a man from this world and deprive him of happiness in the next — idolatry, incest, and murder — but that slander is worse than these in that it kills three persons at once: the slanderer, the slandered, and the listener. It is more effective than a double-edged sword.

Stand against the blood of thy neighbour. Preferably, “rise up against the life of thy neighbor,” either directly or by false witness (see Dan. 8:25; 11:14; 1 Chron. 21:1). The Jews interpret it to mean that he who sees anyone in danger, as from drowning, robbery, or wild beasts, is duty bound to help; or that if a man happens to witness a crime or an injustice, he is bound to go to the rescue of the individual wronged, either by personal assistance or by bearing testimony in court.