"To the angel of the church in Sardis write: "This is the message from the one who has the seven spirits of God and the seven stars. I know what you are doing; I know that you have the reputation of being alive, even though you are dead!
So wake up, and strengthen what you still have before it dies completely. For I find that what you have done is not yet perfect in the sight of my God.
Remember, then, what you were taught and what you heard; obey it and turn from your sins. If you do not wake up, I will come upon you like a thief, and you will not even know the time when I will come. 1
References for Revelation 3:3
3.3 Mt 24.43, 44; Lk 12.39, 40; Rev 16.15.
But a few of you there in Sardis have kept your clothes clean. You will walk with me, clothed in white, because you are worthy to do so.
Those who win the victory will be clothed like this in white, and I will not remove their names from the book of the living. In the presence of my Father and of his angels I will declare openly that they belong to me. 2
References for Revelation 3:5
3.5 a Ex 32.32, 33; Ps 69.28; Rev 20.12; b Mt 10.32; Lk 12.8.
"If you have ears, then, listen to what the Spirit says to the churches!