“Have Aaron your brother brought to you from among the Israelites, along with his sons Nadab and Abihu, Eleazar and Ithamar, so they may serve me as priests. 2 Make sacred garments for your brother Aaron to give him dignity and honor. 3 Tell all the skilled workers to whom I have given wisdom in such matters that they are to make garments for Aaron, for his consecration, so he may serve me as priest. 4 These are the garments they are to make: a breastpiece, an ephod, a robe, a woven tunic, a turban and a sash. They are to make these sacred garments for your brother Aaron and his sons, so they may serve me as priests. 5 Have them use gold, and blue, purple and scarlet yarn, and fine linen. Exodus 28:1-5
God ordained that Aaron and his song should be the first priests. Moses was to present Aaron to the people as a man of dignity. He would be clothed in the finest of linens appropriately.
Being a priest – the first High Priest – must have been a great honor. Aaron and his sons were being set apart for a very specific and special purpose, to stand between God and the people.
We also understand this priesthood of Aaron, but in a different way. in 1 Peter 2:9 Peter wrote “You are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light.” As priests we have direct access to God the Father through Jesus Christ.
While Aaron had a great honor among his people, we too are honored to be called sons and daughters of God the Most High.
As written in ligonier.org:
“In Christ, there is a true priesthood of all believers. All of us who trust in Jesus alone for salvation have free access into His presence, and all of our lawful vocations are set apart for true God-honoring service. The janitor who does his work to the Lord is in no worse position spiritually than the most gifted preacher on the planet, for all Christians have been declared righteous servants of the creator God.”