Fine white linen — the highest quality textile of the ancient Near East, associated with royalty, priests, and divine worship. Used for tabernacle curtains, priestly garments, and the clothing of the righteous in prophetic literature.
Buts (fine linen) is the material of God's dwelling and God's servants. The tabernacle's inner curtains were woven of fine linen. The high priest wore fine linen on the Day of Atonement. In Revelation 19:8, the bride of Christ is given 'fine linen, bright and clean' to wear — and the text interprets it: 'Fine linen stands for the righteous acts of God's holy people.' The textile of worship becomes the metaphor for a life of righteousness.