The 7 churches of Revelation - Pillars in the Place of Holiness - Philadelphia (Revelation chp 3 vs 7 to 13) - JS Gillespie 

Philadelphia the church that breaks the mould. Arising from the unpromising soils of corruption and compromise Philadelphia has found the secret of success. The character of Christ is seen in His church; holiness and truth. They value His presence and His Word. Prepared with such a grasp of Divine truth and character they are ready to enter through the open door of opportunity, a door leading to a far greater destiny than service itself. They are destined as pillars in the place of holiness!

From a series of Bible teaching messages on the seven churches of Revelation 

Yours by 

Grace in Christ

Dr J Stewart Gillespie