Exodus 40:15 tells Moses to anoint Aaron’s sons with the same sacred oil he used on their father, so that they can serve God as priests. The anointing is not a one-time ceremony: it marks a priesthood that is meant to continue for generations. God speaks these words through Moses, who is receiving detailed instructions for setting up the tabernacle and its worship.
You shall anoint them, as you anointed their father, that they may minister to me in the priest’s office. Their anointing shall be to them for an everlasting priesthood throughout their generations.”
Exodus 40:15 (WEB)
What Exodus 40:15 Means
The verse begins with “You shall anoint them,” a direct command. Anointing in Israel’s worship involved pouring consecrated oil over a person or object to set them apart for God’s purposes. Moses is told to do for Aaron’s sons what he has already done for Aaron, so that the family line of priests is marked in the same way.
The phrase “that they may minister to me in the priest’s office” explains the purpose. Ministry here means service in God’s presence: offering sacrifices, tending the tabernacle, and mediating between a holy God and a people who are not holy. The privilege belongs to God’s appointment, not to the men’s own choosing.
The closing words, “Their anointing shall be to them for an everlasting priesthood throughout their generations,” promise continuity. The verse does not promise that every priest will be faithful or that the office will never be disrupted. It states that God intends this priesthood to pass down through the family of Aaron, and it sets the terms of that calling.
The Context of Exodus 40:15
Exodus is traditionally attributed to Moses and was written for the people of Israel as they journeyed from slavery in Egypt toward the land God had promised. The book moves from deliverance at the Red Sea to the covenant at Sinai, and then to the building of the tabernacle, God’s dwelling place among them. Chapter 40 is the final chapter, where the tabernacle is raised and the worship arrangements are put in place.
The verses just before and after show the sequence. Aaron and his sons are to be washed, clothed in holy garments, and anointed. Verse 16 then records that Moses did exactly as the LORD commanded, and verse 17 marks the tabernacle being raised on the first day of the first month of the second year. Read in that setting, verse 15 is part of a careful, obedient set-up of God’s worship, not an isolated instruction.
Key Phrases in Exodus 40:15
1 Peter 2:9
But you are a chosen race, a royal priesthood, a holy nation, a people for God’s own possession, that you may proclaim the excellence of him who called you out of darkness into his marvelous light…
(WEB)
Peter describes believers as a royal priesthood, showing that the language of priestly service is extended to God’s people in a new way. Reading this alongside Exodus 40:15 helps you see how the calling to minister to God has moved from one family to the whole community of faith.
Hebrews 7:24
But he, because he lives forever, has his priesthood unchangeable.
(WEB)
Hebrews explains that Jesus holds His priesthood permanently, which fulfills the idea of an enduring priesthood that the Old Testament pointed toward. This passage helps you understand why the “everlasting” language in Exodus 40:15 finds its deepest meaning in Christ.
A Short Prayer From Exodus 40:15
Lord, you chose Aaron and his sons to serve you, and you set them apart with a holy anointing. I thank you that you still call people into your service and make them ready for it. Help me to take seriously the work you give me, whether it seems large or small, and to remember that I serve you and not only the people around me. Keep my heart faithful, and let the way I live pass something good to those who come after me. Amen.
