JMNT(i)
9 Then when He opened the fifth seal, I saw, down under the altar of burnt-offering, the souls of the folks having been slaughtered [as in sacrifice] because of the Word of God (or: God’s message), and because of the witness (testimony; evidence) which they were holding (or: continued to have).
10 And they uttered a cry with a great (or: by a loud) voice, repeatedly saying, "Until when (How long), O Absolute Owner (Sovereign Lord; Master), the Set-apart (Holy) and True One, are You not deciding (separating and judging) and maintaining right for (operating out of the way pointed out for; or: avenging) our blood, out of those habitually having an abode (dwelling) upon the Land (earth)?"
11 And a brilliant white robe was given to each of them, and it was declared to them that they may rest themselves (permit themselves to cease from any movement or labor in order to recover strength) a little time longer (yet a short time) while (or; until) also [the number of] their fellow-slaves, even their brothers – those continually being about to be killed, even as they [were] – may be fulfilled (filled up; made full).