Revelation 6:10–11

10 They cried out with a loud voice, “Lord,B the one who is holy and true,j how long until you judge those who live on the earth and avenge our blood?k” 11 So they were each given a white robe, and they were told to rest a little while longer until the number would be completed of their fellow servants and their brothers and sisters, who were going to be killed just as they had been.