How Aaron and Moses Share One Mission at the Mountain and Plagues

The reunion of Aaron and Moses at the mountain of God is brief in the Torah and immense in the midrashic imagination. Shemot Rabbah reads that meeting as the start of a shared mission and traces the same partnership through the long sequence of plagues that follow. Two passages from the collection sketch a theology of brotherhood in which two men carry one office between them.

The first passage opens with the verse from Psalms in which kindness and truth meet and righteousness and peace kiss. The second turns to the moment when Moses extends his staff toward the heavens and hail falls on Egypt. The midrash binds the two scenes by assigning the brothers complementary roles that hold across both encounters.

Why Two Brothers Carry One Mission

The first passage begins from the literal verse in Exodus and reaches for the line in Psalms about kindness and truth meeting. The midrash assigns each of the four virtues in the psalm to one of the two brothers. Aaron is read as kindness and as peace; Moses as truth and as righteousness. Rabbi Azarya then reverses the assignments, reading Moses as the one who acted in kindness for Joseph and Aaron as the one in whose mouth the law of truth was found.

The reversal is the point. The two brothers are interchangeable across the four virtues because no single virtue belongs to one man alone. The High Priest and the prophet split the work, and the work flows back and forth between them.

How the Goldsmith Parable Distinguishes True Kisses

The midrash is anxious about the kiss itself. A long tradition treats most kisses as suspect, and the passage lists only three that escape that judgment. The reunion of Aaron and Moses is one of the protected three. Rabbi Shmuel bar Naḥman explains with a parable about a goldsmith and two coins. The first coin looks like gold but is earthenware under a thin plating. The second is solid gold throughout. Esau's kiss of Jacob is read as the first coin. The kiss of Aaron and Moses is the second.

The gladness was symmetrical. Each brother was glad for the prominence of the other. An alternative reading treats the kiss as a transaction in which the brothers exchange the priestly and Levite ranks between them. Office moves across them rather than settling on one.

What the Verse from Psalms Builds at the Mountain

Once the four virtues have been distributed, the midrash reads the mountain itself as the meeting place named in the line. The phrase about kindness and truth meeting becomes a quiet description of what happens when Aaron walks out from Egypt and Moses walks down from the wilderness and the two stand together.

The closing question of this passage is left genuinely open. The midrash asks who was accorded the deference of the kiss. One reading gives it to Aaron, who had been prophesying inside Egypt that deliverance was coming, so that Moses's arrival would confirm rather than displace him. Another reverses this, with Aaron honoring Moses so that Moses's words would be trusted. The kiss stays unattributed because either attribution would unbalance the picture.

Why This Tradition Was Preserved

This material survived in Shemot Rabbah because of what it solves for a working community. A people that lives by both priesthood and prophecy needs a foundation story in which those two offices are not rivals. The mountain reunion gives that story in compact form. The four virtues are split across the brothers in two different ways, and both ways work, which means the offices are not zero sum.

The transmission of these readings also kept alive a sensibility about the difference between true and false displays of affection. The goldsmith parable became a portable image that later teachers could lift into discussions of trust, kinship, and political reconciliation far beyond Aaron and Moses.

How the Plagues Divided Between Aaron Moses and the Heavens

The second passage opens at the seventh plague, when hail falls on Egypt. Before commenting on the hail, the midrash gives a structural summary of the ten plagues. Three were carried out by Aaron, three by Moses, three directly from above, and one by all three together. Blood, frogs, and lice were Aaron's because they worked on the earth. Hail, locusts, and darkness were Moses's because they worked in the air, and Moses held control over both earth and heavens. Swarms, pestilence, and the death of the firstborn were performed directly. Boils were shared.

The division follows the same logic as the mountain meeting. The brothers are paired across a sequence no single person could carry alone, and the pairing is operational rather than symbolic. The brotherly partnership from the mountain becomes the working procedure of the liberation.

Where Fire and Hail Make Peace Inside One Stone

The hail itself prompts a second parable. Fire and hail are natural enemies, and Exodus describes fire flaming inside the hail as a single phenomenon. The midrash compares this to two hardened legions that had been fighting until the king made peace between them and sent them on a joint mission. One sage compares the hailstone to a pomegranate seed whose pit can be seen through the outer layer. Another compares it to a lantern in which water and oil are mixed and a flame still burns inside.

The parable of the legions reaches back to the first passage. The brothers also held different aspects in one mission. Kindness and truth, peace and righteousness, priestly and prophetic office, earthly plague and aerial plague, all of these were paired without merging into one. Distinct forces serve one purpose for the duration of one charge.