Treasury of Scripture Knowledge

Summary

Also the Levites which were the singers, all of them of Asaph, of Heman, of Jeduthun, with their sons and their brethren, being arrayed in white linen, having cymbals and psalteries and harps, stood at the east end of the altar, and with them an hundred and twenty priests sounding with trumpets:)

Bible References

Arrayed

Revelation 15:6
And the seven angels, who had the seven plagues, came out of the temple, clothed in linen pure and bright, and girded about their breasts with girdles of gold.
Revelation 19:8
And it was given to her, that she should be arrayed in fine linen clean and bright: for the fine linen is the righteousness of the saints.