اَلْعَدَد 8:15

وَبَعْدَ ذَلِكَ يَأْتِي ٱللَّاوِيُّونَ لِيَخْدِمُوا خَيْمَةَ ٱلِٱجْتِمَاعِ فَتُطَهِّرُهُمْ وَتُرَدِّدُهُمْ تَرْدِيدًا،

And after that shall the Levites go in to do the service of the tabernacle of the congregation: and thou shalt cleanse them, and offer them for an offering.