Throughout Leviticus, Israel remains encamped at Mount Sinai while God appears in the Tent of Meeting, dictating to Moses his specifications regarding the Jewish ceremonial laws. The laws are extremely detailed, outlining every aspect of how and when religious offerings are to be presented to God. God gives the instructions himself, and his voice comprises the majority of the text. A brief narrative interlude describes the anointing of Aaron and his sons as Israel's priests. At the ceremony, God appears and engulfs the altar in a burst of flames, eliciting shouts of joy from the people. Soon after, God also sends fire to consume two of Aaron's sons when they neglect to make the right preparations for approaching the altar.
