'Robes' in the Bible

Around the throne were 24 other thrones, and on these thrones sat 24 elders wearing white robes and gold victor's crowns on their heads.

After these things, I looked, and there was a crowd so large that no one was able to count it! They were from every nation, tribe, people, and language. They were standing in front of the throne and the lamb and were wearing white robes, with palm branches in their hands.

"Who are these people wearing white robes," one of the elders asked me, "and where did they come from?"

Then he told me, "These are the people who are coming out of the terrible suffering. They have washed their robes and made them white in the blood of the lamb. That is why: "They are in front of the throne of God and worship him night and day in his Temple. The one who sits on the throne will shelter them.

"How blessed are those who wash their robes so that they may have the right to the tree of life and may go through the gates into the city!