Hebrews 5:1

For every high priest chosen from among men is appointed to act on behalf of men in relation to God, to offer gifts and sacrifices for sins.

Hebrews 7:27

He does not need, like those high priests, to offer up daily sacrifices, first for his own sins and then for the sins of the people, because he did this once for all when he offered up himself.

Hebrews 8:3-4

For every high priest is appointed to offer both gifts and sacrifices; and so it is necessary for this priest also to have something to offer.

Treasury of Scripture Knowledge

Summary

This is the offering of Aaron and of his sons, which they shall offer unto the LORD in the day when he is anointed; the tenth part of an ephah of fine flour for a meat offering perpetual, half of it in the morning, and half thereof at night.

Bible References

The offering

Hebrews 5:1
For every high priest chosen from among men is appointed to act on behalf of men in relation to God, to offer gifts and sacrifices for sins.
Hebrews 7:27
He does not need, like those high priests, to offer up daily sacrifices, first for his own sins and then for the sins of the people, because he did this once for all when he offered up himself.
Hebrews 8:3
For every high priest is appointed to offer both gifts and sacrifices; and so it is necessary for this priest also to have something to offer.