Exodus 29:33-35

The Voice

³³ Only they are allowed to eat the bread and meat which was part of their purification rite in the ordination ceremony. An outsider may not eat them because they are holy. ³⁴ If any meat or bread is left over from the ordination ceremony the next morning, burn it completely. No one is allowed to eat it, for it is holy.

³⁵ The ordination period is to last for seven days. Here is what you must do to ordain Aaron and his sons to My priestly service.