Whereas other Biblical personalities exemplify their commitment to God or to their parents, Aharon (the sixth of the Ushpizin) is a model brother, demonstrating caring and support for his siblings. Though Moshe, the younger brother, was chosen to be the main emissary of God and leader of Am Yisrael, there is no hint of jealousy in Aharon's actions. Aharon is truly happy for Moshe, and happy to see him after years of Moshe’s exile in Midian.