Revelation 3:4-6

⁴But you have some names in Sardis who have kept clean their robes; and as a reward they will go in white with me.

⁵He who overcomes will be dressed in white, and I will not take his name from the book of life, and I will give witness to his name before my Father, and before his angels.

⁶He who has ears, let him give ear to what the Spirit says to the churches.