to the: Revelation 1:11, Revelation 2:1
Philadelphia: Philadelphia, so called for its founder, Attalus Philadelphus, still exists in the town called Allahshehr, "the city of God," "a column in a scene of ruins." It is situated on the slopes of three or four hills, the roots of mount Tmolus, by the river Cogamus, twenty seven miles ese from Sardis, about long. 28 degrees 40 minutes, lat. 38 degrees 23 minutes. The number of houses is said to be about 3,000, of which 250 are Greek, the rest Turkish; and the Christians have twenty-five places of worship, five of them large and regular churches, a resident bishop, and twenty inferior clergy.
he that is holy: Revelation 4:8, Revelation 6:10; Psalms 16:10, Psalms 89:18, Psalms 145:17; Isaiah 6:3, Isaiah 30:11, Isaiah 41:14, Isaiah 41:16, Isaiah 41:20, Isaiah 47:4; Isaiah 48:17, Isaiah 49:7, Isaiah 54:5, Isaiah 55:5; Mark 1:24; Luke 4:34; Acts 3:14
he that is true: Revelation 3:14, Revelation 1:5, Revelation 6:10, Revelation 15:3, Revelation 16:7, Revelation 19:2, Revelation 19:11, Revelation 21:5; Matthew 24:35; John 14:6; 1 John 5:20
the key: Revelation 1:18; Isaiah 22:22; Luke 1:32
he that openeth: Revelation 5:3-5, Revelation 5:9; Job 11:10, Job 12:14; Matthew 16:19