Just to clarify my previous comments about a Commander and a messenger coming from a Commander. It was a military commander; imagine a general. The messenger; imagine a courier.
If a courier arrives to you in the midst of a battle with a message supposedly from the commander, you have to authenticate the message that the courier is bringing.
Once you do authenticate the message, the courier isn’t the issue. The issue is that the General has issued an order and that order if written down in front of your eyes.
If the Commander’s message said “Take hill 1782” and the courier says “No, I want you to take hill 597”, that should prompt you to say, “What...are you nuts?” If he replies, “Well, I carried and authenticated that written message from the General to you, so I’m now in charge.”, then you know that he’s gotten himself wrapped around the axle.
Excellent analogy.......