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 there came out of the sanctuary the seven angels who were bringing the seven plagues. The angels were clad in pure, bright linen, and had girdles of gold across their breasts.
Revelation 19:8
And she was permitted to array herself in fine linen, shining and spotless; the fine linen being the righteous actions of God's people.