Unleavened bread - Three kinds of bread as to its form are mentioned here, but all unleavened:
These were all waved before the Lord, Exodus 29:24, as an acknowledgment that the bread that sustains the body, as well as the mercy which saves the soul, comes from God alone.
The consecration of the priests. See the notes to Exodus 29:4
Door of the tabernacle - Entrance of the tent. See Leviticus 8:3.
Exodus 29:27
The “waving” was the more solemn process of the two: it was a movement several times repeated, while “heaving” was simply a “lifting up” once.
Exodus 29:33
A stranger - One of another family, i. e. in this case, one not of the family of Aaron.