You don't?
From Albert Barnes commentary:
Exo 21:20-21 - The Jewish authorities appear to be right in referring this law, like those in Exo_21:26-27, Exo_21:32, to foreign slaves (see Lev_25:44-46). The protection here afforded to the life of a slave may seem to us but a slight one; but it is the very earliest trace of such protection in legislation, and it stands in strong and favorable contrast with the old laws of Greece, Rome, and other nations. If the slave survived the castigation a day or two, the master did not become amenable to the law, because the loss of the slave was accounted, under the circumstances, as a punishment.
Are you a Christian?
Or should I say, do you claim to be a Christian?
It's a sad fact, we know from Josephus for one, that Jews kept slaves. However, Christians in the US and Britain ended it the best they could, and can, in modern times.
From Albert Barnes commentary:
You are dodging. I'm not interested in commentary. Is this the word of God?
Exodus 21:20-21: "If a man beats his male or female slave with a rod and the slave dies as a direct result, he must be punished, but he is not to be punished if the slave gets up after a day or two, since the slave is his property"