They have put faith in Christ’s ransom sacrifice, symbolically ‘ washing their robes and making them white in the blood of the Lamb. ’
فَقَدْ آمَنُوا بِذَبِيحَةِ ٱلْمَسِيحِ ٱلْفِدَائِيَّةِ ،‏ إِذْ إِنَّهُمْ مَجَازِيًّا « غَسَلُوا حُلَلَهُمْ وَبَيَّضُوهَا بِدَمِ ٱلْحَمَلِ » .‏