Note 2 at Lu 10:18: These disciples were amazed to find out that demons were subject unto them. Jesus was simply stating that He already knew this, and He even went beyond that by saying that He beheld Satan being cast out of heaven. This, no doubt, reveals His deity and His existence as God before His incarnation as Christ. (See note 1 at Joh 1:1, note 4 at Joh 5:19, note 5 at Joh 5:20, note 6 at Joh 5:21, note 7 at Joh 5:22, and note 8 at Joh 5:23 - all on the deity of Christ.) Jesus beheld the events recorded in Isa 14:12-15.