Aaron’s sons Nadab and Abihu break the rituals commanded by Yahweh and are struck down. Moses scolds Aaron and his sons on following their duties as priests.
Yahweh gives instructions to make garments for Aaron and his sons to serve as priests at the tabernacle.
Yahweh tells Moses to bring the elders of Israel to meet him on Mount Sinai. Moses has the Israelites make offerings. Moses and Joshua go onto the mountain and stay 40 days and 40 nights.
Yahweh explains to Moses who he is and the covenant he made with Abraham, Isaac and Jacob. He tells Moses and Aaron to demand release of the Israelites.