Deuteronomy 25:1-4

1If controversy arises between people, they should go to court for judgment. When the judges hear the case, they shall exonerate the innocent but condemn the guilty.

2Then, if the guilty person is sentenced to a beating, the judge shall force him to lie down and be beaten in his presence with the number of blows his wicked behavior deserves.

3The judge may sentence him to forty blows, but no more. If he is struck with more than these, you might view your fellow Israelite with contempt.

4You must not muzzle your ox when it is treading grain.