God commands Moshe to instruct Aaron to light the Menorah in the Mishkan. Levites are purified and consecrated to serve in place of the firstborn Israelites. God sets an age limit for Levite service in the Tent of Meeting, retiring them at 50. The Passover Sheini ritual is established. Trumpets are crafted to summon and guide the community during journeys and battles. As the Israelites journey from Mount Sinai, Moshe invites Yisro to join them, but he declines. Two of Moshe's powerful invocations and instances of complaints and divine retribution are documented amidst their travels. God instructs Moshe to assemble 70 elders to share the burden of leadership, granting them a portion of His spirit. Eldad and Medad also receive this gift of prophecy, sparking concern among others. However, Moshe expresses his desire for all of God's people to be prophets. The people voice their craving for meat, leading God to send quail while also striking them with a plague. When Miriam questions Moshe's marriage to a Cushite woman, God rebukes her, afflicting her with leprosy. Yet, Moshe intercedes, praying for her healing, eventually allowing her to rejoin the community.