11 There was given to each one of them a white robe. It was said to them that they should rest yet for a little time, until their fellow servants and their brothers, who would also be killed even as they were, had been fulfilled.
given a white robe – their robes are white because they are cleansed “of the blood of the Lamb” (Rev 7:14). The Martyrs have no body, to wear a “robe.” Therefore, the robe is symbolic. The first resurrection is only for the “souls” of the Martyrs. In the last resurrection, we will all resurrect, and the bodies of the Martyrs will also be resurrected; and “we will all be changed” (1 Cor 15:51). Then, our corruptible bodies will be exchanged for incorruptible bodies. Therefore, in Rev 6:9, and Rev 20:4, John told us that he only saw “the souls” of the martyrs, because their bodies had not yet resurrected.
that they should rest a while longer – until the Lord’s Day, when the suffering of the saints comes to an end.