Every Israelite Was a Priest Until Aaron Was Chosen for the Altar

Most people think the priesthood was always Aaron's. A family destiny. A line that went from Levi through Kohath through Amram and landed on Aaron and his sons because that is how God had always meant to run the Tabernacle. Read Exodus forward and it looks inevitable.

The Mekhilta DeRabbi Yishmael, a tannaitic midrash on Exodus composed in the academy of Rabbi Ishmael in second and third-century Palestine, refuses to let this feel inevitable. It says something the Torah never quite says out loud. Before Aaron was chosen, every single member of the nation was eligible to serve at the altar. The priesthood was not a family. It was a vocation open to everyone. A nation of priests, exactly the way the Torah describes it at Sinai in (Exodus 19:6). Every man, every father, every firstborn, every Israelite with clean hands could walk up to the altar and offer a sacrifice on behalf of his own household. The system was radically open.

Then one day it wasn't.

The Mekhilta, in Tractate Pischa, builds this reading from two verses that use the same loaded word. Both of them call the Aaronic priesthood everlasting. The first is (Numbers 18:19), which says, "An everlasting covenant of salt is it before the Lord for you and for your sons." The covenant of salt is the ancient Near Eastern image of an unbreakable contract, borrowed from the practice of mixing salt into the flesh of a shared meal to mark a permanent bond. Salt does not decay. Salt does not forget. A covenant of salt is the most durable agreement the Hebrew Bible knows how to imagine, and that phrase is applied exclusively to the priesthood of Aaron and his sons.

The second verse is (Numbers 25:13), spoken after the zealot Pinchas stopped a plague by killing an idolater in the middle of the camp. God responds with a promise. "And it shall be unto him and to his seed after him the covenant of an everlasting priesthood." Everlasting. The same word. The same irreversible tone.

The Mekhilta puts these two verses side by side and draws the conclusion. Once the selection was made, it was permanent. Aaron's family in. Everyone else out. The door that had been open to all of Israel was now shut forever, and the lock was forged out of a word the Torah almost never uses casually.

This teaching sits inside a much larger pattern in the Mekhilta DeRabbi Yishmael. The rabbis of the second and third centuries were obsessed with what they called the logic of divine narrowing. God, they noticed, tends to start wide and narrow down. He created the whole earth, then narrowed His focus to one man, Abraham. From Abraham's seed He chose not Ishmael but Isaac. From Isaac's twin sons He chose not Esau but Jacob. From Jacob's twelve sons He chose Levi for service. From Levi's descendants He chose the family of Kohath to carry the holiest vessels. From the Kohathites He chose Amram's son Aaron for the altar. Every step narrows the opening. Every step closes a door behind it.

The same pattern, the Mekhilta notices, runs through the geography. God chose the land of Israel from all lands. He chose Jerusalem from all the cities in that land. He chose Mount Moriah from all the hills around Jerusalem. He chose a single rock on Moriah as the place where the Tent of Meeting would rest and where the Temple altar would later stand. The narrowing is relentless. It always moves from many to one.

This has an uncomfortable implication for any Israelite who might have wanted to keep offering his own sacrifices at his own family altar. The Mekhilta is telling him that the day Aaron was chosen, his own eligibility was revoked. Not because he had done anything wrong. Because God narrowed. The ordinary Israelite could still pray. He could still learn Torah. He could still serve God in every other way the tradition allowed. But he could no longer walk up to the altar with a lamb in his hands and do the work himself. That work now belonged, forever, to a single family.

Ginzberg, in his Legends of the Jews, published in seven volumes between 1909 and 1938, preserves an older version of this tradition which insists that the firstborn sons of every Israelite family had been the original priests. They were the ones who did the sacrifices in the patriarchal period. Jacob offered sacrifices. Abraham offered sacrifices. Isaac was almost the sacrifice. None of them came from the tribe of Levi, because the tribe of Levi did not exist yet. The Mekhilta's principle extends backward through the patriarchs and forward through the Temple period. Once, everyone. Then, one family only.

The Mekhilta is quietly defending something the early rabbis took very seriously. Holiness, in this reading, is not a diffuse atmosphere. It is not a quality that spreads evenly across the nation. It is a specific job, performed by specific people, at a specific place, on behalf of everyone. The ordinary Israelite is not less holy. He is differently holy. He lives his holiness in the field and the tent and the study hall. Aaron's sons live their holiness at the altar. The narrowing is not a rejection. It is a division of labor.

But the Mekhilta is also quietly honest. The door that was once open to everyone is no longer open to everyone. The covenant of salt sealed it shut. The old midrash does not pretend otherwise. It says the thing the Torah avoids saying directly. Once there was a nation of priests. Now there are cohanim, and the rest of us.

The salt does not dissolve.