Revelation 3:3-5

New Revised Standard Version, Anglicised

³ Remember then what you received and heard; obey it, and repent. If you do not wake up, I will come like a thief, and you will not know at what hour I will come to you. ⁴ Yet you have still a few people in Sardis who have not soiled their clothes; they will walk with me, dressed in white, for they are worthy. ⁵ If you conquer, you will be clothed like them in white robes, and I will not blot your name out of the book of life; I will confess your name before my Father and before his angels.