Then all the elders of the city nearest the victim shall wash their hands by the stream over the heifer whose neck has been broken,
6. And all the elders of that city. The washing of their hands had the effect of stirring them up the more, so that they should not inconsiderately protest in that solemn rite that they were pure and guiltless; for it was just as if they had presented the corpse of the dead mall before God, and had stood themselves opposite to it to purge away the crime.
Care had been taken by some preceding laws for the vigorous and effectual persecution of a wilful murderer (Deu 19:11 etc.), the putting of whom to death was the putting away of the guilt of blood from the land; but if this could not be done, the murderer not being discovered, they must not think that the land was in no danger of contracting any...
Commenting on Deuteronomy 21:1-9
And all the elders of that city that are next unto the slain man,.... The whole court of judicature belonging to it, all the magistracy of it; even though there were an hundred of them, Maimonides (x) says: shall wash their hands over the heifer that is beheaded in the valley: in token of their innocence, and this they did not only for themselves, but...