Alma 34:11

Now there is not any man that can sacrifice his own blood, which will atone for the sins of another. Now if a man murdereth, behold, will our law, which is just, take the life of his brother? I say unto you Nay.

No person can give their own blood to pay for someone else’s sins. If a man kills someone, will our fair law take the life of his brother? I tell you no.

No person can shed their own blood to atone for someone else’s sins. If someone commits murder, does our just law execute his brother instead? Of course not.