Here’s a little thought. How come someone other than Jesus can’t die for my sins? Why can’t my dad? Why can’t Mohammed or Buddha or Confucius? How come I can’t die for my sister’s sins? What’s so exclusive to Jesus that only He can die for our sins?
Why? Because if I die for anyone’s sins, I can only die for my sins, because I am only getting what I deserve. I can’t die for someone else’s justice. I die for my own justice. This is what happens to everyone that isn’t a believer – they die for their own sins. It’s like a criminal saying he will go to jail in his buddy’s place. If he goes to jail, he goes to jail for himself. Jesus is the only one who had no sins, and to whom justice does not stand against. He can say, I’ll go to jail for him, and he might, because He isn’t sentenced Himself.