The washing of Aaron’s sons prefigured the cleansing of those selected to be members of the heavenly priesthood.
يُشِيرُ غَسْلُ أَبْنَاءِ هَارُونَ إِلَى تَطْهِيرِ ٱلْمُخْتَارِينَ لِيَكُونُوا أَعْضَاءَ ٱلْكَهَنُوتِ ٱلسَّمَاوِيِّ .‏