Aaron and Miriam stand beside Moses as priesthood and prophecy stand beside law.
Aaron is the brother of Moses and the first high priest. Through him the priestly line is established: altar, sacrifice, vestments, incense, blessing, and the ritual mediation between Israel and God. He carries the sacred office that will later unfold through the Tabernacle, Temple, and High Priesthood.
Miriam is the prophetess of the Exodus. She watches over Moses as an infant, sings after the crossing of the sea, and stands as one of the feminine prophetic powers in the liberation story. Her song is one of the first great liturgical responses to deliverance.
Together, Aaron and Miriam show that the Exodus is not only lawgiving. It is priesthood, prophecy, song, ritual, and communal passage through the waters.
Within the Royal Art, Aaron belongs to the Temple current and Miriam to the prophetic-bardic current. Moses liberates and gives the Law, but Aaron consecrates and Miriam sings. The Work requires all three.