Revelation 3:1-6 - The Letter To The Church In Sardis
1 "And to the angel of the church in Sardis write: "This is what the one who has the seven spirits of God and the seven stars says: 'I know your works, that you have a name that you are alive, and you are dead. 2 Be on the alert and strengthen the remaining [things] that are about to die, for I have not found your works completed before my God. 3 Therefore remember how you have received and heard, and observe [it], and repent. If therefore you are not on the alert, I will come like a thief, and you will never know [at] what hour I will come against you. 4 But you have a few {people} in Sardis who have not defiled their clothing, and they will walk with me in white, because they are worthy. 5 The one who conquers in this way will be dressed in white clothing, and I will never erase his name from the book of life, and I will declare his name before my Father and before his angels.
6 The one who has an ear, let him hear what the Spirit says to the churches.'