The reason all rise when the Judge enters the courtroom is because everyone is aware of who the Judge is. I guess you are saying; at that time proof will be given that your God is the true God.
I actually like this explanation from your own mouth(keyboard), Ken. The Bible states that fools say there is no God. What this implies is that we all have something within us that bears witness to the truth of God’s existence. This is the part of us that will recognize/bear witness of God in Christ when He comes back. And it is this that will compel us to bow and confess. There will be no need for oratorical explanation. It will be instinctive.