He needs to be able to understand how ammonia can hurt him. Because I said so. I said in the introduction, that we look at the cross of Christ in the same way all the time. And, as we do that, we really cheat ourselves. One of the magnificent things that the Bible is telling us is that obedience is very important.
Obedience is necessary.
One thing that we can learn from the cross of Christ is that even the Son of God had to be obedient to the Father. There is a lot of power in that. Obedience is capable of transforming the social order. It is absolutely necessary if the human race is going to survive. We must stop hating one another, but that may not be possible right now because that's the call to love.