Revelation 3:2-4

New Revised Standard Version, Anglicised Catholic Edition

² Wake up, and strengthen what remains and is at the point of death, for I have not found your works perfect in the sight of my God. 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.