tops of the pear trees, then shalt thou go out to battle. For God is gone out before thee to strike the army of the Philistines." Their manifestations in the natural world are one of the ways that Angels can communicate between the Heavenly and Earthly realms.
             Carrying out their ministerial duties, Angels can be said to serve as God's executive assistants. The Catechism of the Catholic Church quotes St. Augustine as distinguishing between the beings and the offices they hold: " 'Angel' is the name of their office, not of their nature. If you seek the name of their nature, it is 'spirit'; if you seek the name of their office, it is 'angel': from what they are, 'spirit', from what they do, 'angel,'" (I.ii.Ch.1 Article 1 line 329). As Pope John Paul II reiterated in his Catechesis on Angels, they are "purely spiritual" beings.
             As beings constituting pure spirit, Angels have no physical form as human beings do. Angels are "not proper to the visible
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