Strengthening What Remains: The Book of Revelation
We will now study the Church at Sardis (1400–1844):
To the angel of the church in Sardis write; these things says He that has the seven Spirits of God, and the seven stars; I know your works, that you have a name that you are alive, but are dead.
Be watchful, and strengthen the things that remain, that are ready to die: for I have not found you works completed before God (Revelation 3:1-2 NKJV).