It is still a question that I am contemplating, since the Almighty is just that, Almighty.
Why ever consider using us in any way for that which He can most easily do Himself without us? And the question that arises with that is this, will He use those who do not desire to be useful?
Or are we to presume that every person who honestly has been born again has within them a fervent desire to be just that, useful in some way towards the glory of God?