'Clothed in White' in the Bible

And perceived two angels clothed in white sitting there, where the body of Jesus had been lying, one where the head and the other where the feet had been.

While they were still gazing up into the heavens, as he went, suddenly two men, clothed in white, stood beside them,

And round the throne were twenty-four other thrones, and on these I saw twenty-four Councillors sitting clothed in white robes; and on their heads they had crowns of gold.