BELOW: Thor calls Hank Pym's scientific achievement "miraculous": There is a certain irony in this scene. Thor, who is an actual deity, the Norse god of thunder, sees Hank Pym (Ant-Man) and Janet Van Dyne (the Wasp) change from insect-sized to human-sized, and then hears Dr. Pym explain his invention - the pills that allow them to change size. Thor calls this scientific achievement "miraculous." This could be viewed as an interesting inversion of the standard use of this word, in which a scientifically unexplainable and presumably divinely-caused event is referred to as "miraculous" or a "miracle."
Source: The Avengers (vol. 1) #2 (Nov. 1963): "The Avengers Battle... the Space Phantom", pg. 2, panel 4. Written by Stan Lee. Art by Jack Kirby, Paul Reinman. See also: miracles; Thor (Donald Blake); Giant-Man (Hank Pym)