The meaning is: Since taking another person’s life by any means whatever is murder and exposes the murderer to the penalty of retaliation, if the d…

Or in enmity smite him with his hand, that he die
Give him a blow with his fist, on some part of his body where life…

To show plainly the abhorrence of murder, and to provide more effectively for the punishment of the murderer, the nearest relation of the deceased,…