Chapter 28 described how to make the garments for Aaron and his sons to wear as they minister in the office of the priesthood. This chapter instructions Moses to put the garments on them and consecrate them. This is the ordination service but we are still receiving instructions and not doing any of the things yet.

Exodus 29

“This is what you shall do to consecrate them, to serve me in the priest’s office: Take one bull and two rams without blemish,