John the Apostle
Revelation 6:11BSB·traditional attribution

Then each of them was given a white robe and told to rest a little while longer until the full number of their fellow servants, their brothers, were killed, just as they had been killed.

Matthew Henry Presbyterian @wholebiblehenry

In the remaining part of this chapter we have the opening of the fifth and the sixth seals. I. The fifth seal. Here is no mention made of any one who called the apostle to make his observation, probably because the decorum of the vision was to be observed, and each of the four living creatures had discharged its duty of a monitor before, or...

Commenting on Revelation 6:9-17

John Gill Reformed Baptist @doctorgill

And white robes were given to everyone of them,.... The Alexandrian copy, and some others, read in the singular number, "a white robe", and so does the Syriac version; as a token of their innocence, that they did not suffer, or were slain, for any capital crime or immorality they were guilty of; and of their purity and perfection they now enjoyed; as also of...

Albert Barnes Presbyterian @notesbybarnes

Verse 11. (a) "white robes" (b) "rest" (c) "until"