Like the other angels, they are pure spiritual beings without any body, and in their original state they are endowed with supernatural grace and placed in a condition of probation. This was before the sin of our first parents, since this sin itself is ascribed to the instigation of the Devil: "By the envy of the Devil, death came into the world" ( Wisdom ).
Yet it is remarkable that for an account of the fall of the angels we must turn to the last book of the Bible .
The parallel prophetic passage is Ezekiel's lamentation upon the king of Tyre: You were the seal of resemblance, full of wisdom, and perfect in beauty.
You were in the pleasures of the paradise of God ; every precious stone was thy covering; the sardius, the topaz, and the jasper, the chrysolite, and the onyx, and the beryl, the sapphire, and the carbuncle, and the emerald; gold the work of your beauty: and your pipes were prepared in the day that you were created.
But yet thou shalt be brought down to hell, into the depth of the pit.