New Defender's Study Bible Notes
3:9 are not. See note on Revelation 2:9.
3:9 worship before thy feet. These Jews who were of the synagogue of Satan would not worship the Philadelphia believers themselves (not even angels will accept such worship—note Revelation 22:8-9), but in the presence of these believers, they will bow down to the Lord whom they had rejected on earth (Philippians 2:10).