Though done out of mockery, it conveyed a real truth.
Purple was a kingly color, and the soldiers mockingly put this robe on Jesus Christ because He had claimed to be the king of the Jews. Of course, in reality He is much more than that—He is the “King of kings, and Lord of lords” (1 Timothy 6:15; Revelation 19:16).
See more images of Easter—and their meanings—here.