Revelation 7:13

Then one of the [twenty-four] elders asked me, "Who are these ones dressed in white robes, and where did they come from?"

Revelation 19:8

She was given expensive, bright, clean linen [clothing] to wear." (Now the expensive linen [clothing] represents the righteous deeds of the saints [i.e., God's holy people]).

Revelation 19:14

And the armies in heaven, dressed in expensive, white, clean linen, followed Him, [riding] on white horses.

Treasury of Scripture Knowledge

Summary

And the priest shall put on his linen garment, and his linen breeches shall he put upon his flesh, and take up the ashes which the fire hath consumed with the burnt offering on the altar, and he shall put them beside the altar.

Bible References

Linen garment

Revelation 7:13
Then one of the [twenty-four] elders asked me, "Who are these ones dressed in white robes, and where did they come from?"
Revelation 19:8
She was given expensive, bright, clean linen [clothing] to wear." (Now the expensive linen [clothing] represents the righteous deeds of the saints [i.e., God's holy people]).