Because He can show you how much of an over achiever you are. That you are willing to do the most disgusting things all because He told you to.
And that makes His heart smile, His chest inflate, His lip corners lift in a smirk only comparable to someone who has won their own life through trickery.
Not because you are doing this, but because He needs to be careful what He asks of you, because you can do extraordinary things…All He has to do is say so.