So when the dragon saw that he had been thrown down to the earth, he pursued the woman who had given birth to the male child. But the woman was given the two wings of the great eagle, so that she could fly from the serpent into the wilderness ... Then from his mouth the serpent poured water like a river after the woman, to sweep her away with the flood. But the earth came to the help of the woman; it opened its mouth and swallowed the river that the dragon had poured from his mouth (Rev. 12:13-16).
The Woman of the Apocalypse with a wheel of rays now has two wings and is seen hovering in the sky. She is able to escape the seven-headed dragon because the earth, shown in the form of a small mountain floating beneath her, swallows up the deadly jet of water which the beast spews out of his mouth.
From the 11th century Bamberg Apocalypse.