The LORD's command to Moses and Aaron is a significant theme in the Pentateuch, particularly in the books of Exodus, Leviticus, Numbers, and Deuteronomy. These commands are foundational to the establishment of Israel as a covenant community and the implementation of the Law. The commands encompass a wide range of instructions, including the liberation of the Israelites from Egypt, the establishment of religious practices, and the organization of societal laws.

Exodus and the Liberation from Egypt

The initial commands to Moses and Aaron are found in the book of Exodus, where God appoints them as leaders to deliver the Israelites from Egyptian bondage. In Exodus 6:13 , it is written, "Then the LORD spoke to Moses and Aaron and gave them a command concerning the Israelites and Pharaoh king of Egypt, to bring the Israelites out of the land of Egypt." This command sets the stage for the subsequent plagues and the eventual exodus of the Israelites.

The Passover and the Institution of the Law

One of the most pivotal commands given to Moses and Aaron is the institution of the Passover. In Exodus 12:1-3 , the LORD instructs them, "This month is to be the beginning of months for you; it is the first month of your year. Tell the whole congregation of Israel that on the tenth day of this month each man must select a lamb for his family, one per household." This command not only marks the beginning of the Israelites' deliverance but also establishes a perpetual ordinance for future generations.

Following the exodus, the LORD continues to give Moses and Aaron detailed instructions regarding the Law. In Leviticus, the LORD commands them concerning the sacrificial system, dietary laws, and the holiness code. Leviticus 11:1-2 states, "The LORD spoke again to Moses and Aaron, saying, 'Say to the Israelites, 'Of all the beasts of the earth, these ones you may eat.''" These commands are integral to the identity and religious life of Israel.

The Wilderness Journey and Further Instructions

During the wilderness journey, the LORD's commands to Moses and Aaron include guidance on leadership, worship, and community organization. In Numbers 2:1-2 , the LORD commands, "The LORD spoke to Moses and Aaron, saying, 'The Israelites are to camp around the Tent of Meeting at a distance from it, each man under his standard, with the banners of his family.'" This command reflects the order and structure that God desires for His people.

The LORD also addresses issues of rebellion and disobedience, as seen in Numbers 16, where Moses and Aaron are commanded to deal with the rebellion of Korah. The LORD's instructions emphasize the importance of obedience and the consequences of defying divine authority.

Deuteronomy and the Renewal of the Covenant

In Deuteronomy, Moses reiterates the LORD's commands as the Israelites prepare to enter the Promised Land. Deuteronomy 31:14 records, "Then the LORD said to Moses, 'Behold, the time for you to die is near. Call Joshua and present yourselves at the Tent of Meeting, so that I may commission him.'" This command signifies the transition of leadership and the continuity of God's covenant promises.

Throughout these narratives, the LORD's commands to Moses and Aaron underscore the themes of covenant, obedience, and divine guidance. These commands are not merely historical records but serve as enduring principles for faith and practice within the community of believers.