Why does the bible sit on an eagle in church?

In some churches the lectern (Bible stand) is often carved into the shape of an eagle either out of wood, or usually brass. This symbolises the Word of God being proclaimed to the whole world taken out "on eagles' wings". The symbolising of eagles' wings in The Bible is quite widespread from psalm 91 to many of the prophesies where the eagle, the symbol of swift and strong flight, is used to denote protection, speed and the going ut into the whole world. Therefore, the eagles' wings upon which the Bible rests is a very apt reminder that whenever we read scripture in church, we are not reading it for ourselves, but so that the message can be taken out from that place and spread over the whole earth. It is also an encouragement to trust what God says in His Holy Word as we see in Isaiah 40:28-31: Hast thou not known? hast thou not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding. He giveth power to the faint; and to them that have no might he increaseth strength. Even the youths shall faint and be weary, and the young men shall utterly fall: but they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint. (Emphasis added)