The sons of Amram: Aharon and Mosheh. And Aharon was set apart, he and his sons forever, that he should set apart the most set-apart, to burn incense before יהוה, to serve Him, and to give the blessing in His Name forever.
“And you shall put them on Aharon your brother and on his sons with him, and shall anoint them, and shall ordain them, and shall set them apart, and they shall serve as priests to Me.
and shall gird them with girdles – Aharon and his sons – and put the turbans on them. And the priesthood shall be theirs for an everlasting law. So you shall ordain Aharon and his sons.
the woven garments to do service in the set-apart place, the set-apart garments for Aharon the priest and the garments of his sons to serve as priests.’ ”
This is the anointed portion for Aharon and the anointed portion for his sons, from the offerings made by fire to יהוה, on the day when Mosheh presented them to serve as priests to יהוה,
“Take Aharon and his sons with him, and the garments, and the anointing oil, and the bull of the sin offering, and the two rams, and the basket of unleavened bread,
“But you and your sons with you are to guard your priesthood for all matters at the altar and behind the veil, and you shall serve. I have given you the priesthood as a gift for service, but the stranger who comes near is put to death.”