Revelation 12:9

cast out "Out" is not expressed the sense is rather "cast down."

that old serpent Genesis 3:1. This is the only place in canonical Scripture (see, however, Wis 2:24) where we are told that the Tempter in Eden was the Devil: but it cannot be doubted that we areso told here.

the Devil and Satan The Greek word from which the former name is derived is regularly used in the LXX. as the representative of the latter: though the two are not quite synonymous, the Hebrew name meaning "the Adversary," and the Greek "the Slanderer" (e.g. the same word is used in a general sense in 1 Timothy 3:11). "Satan" has the article here, as always in the O. T., except in the Book of Job; it is still rather a designation than a proper name. In Enoch xl. 7 we have it used in the plural in a passage very like this: "The fourth voice I heard expelling the Satans, and prohibiting them from coming into the presence of the Lord of spirits, to prefer accusations against the inhabitants of the earth." The voice is afterwards explained to be that of Phanuel, the angel of penitence and hope.

he was cast out into the earth St Luke 10:18, St John 12:31 throw light on what must be meant a breaking of the power of the Devil by that of the Incarnate Lord: but we cannot be quite sure that our Lord speaks of the samefall of Satan in both passages, or in either of the same that St John describes.