The commissioning of Moses and Aaron is a pivotal event in the biblical narrative, marking the beginning of the deliverance of the Israelites from Egyptian bondage. This event is primarily recorded in the Book of Exodus, chapters 3 through 7, where God calls Moses and appoints Aaron as his spokesperson.

The Call of Moses

Moses' encounter with God occurs at Mount Horeb, also known as the Mountain of God. In Exodus 3:2, Moses sees a bush that is burning yet not consumed by the flames. This miraculous sight captures his attention, and as he approaches, God calls to him from the bush, saying, "Moses, Moses!" (Exodus 3:4). God reveals Himself as the God of Abraham, Isaac, and Jacob, and Moses hides his face, afraid to look at God.

God informs Moses of His awareness of the suffering of the Israelites in Egypt and His intention to deliver them from slavery. He commissions Moses to go to Pharaoh and lead the Israelites out of Egypt. Moses, however, expresses doubt about his ability to fulfill this task, questioning, "Who am I that I should go to Pharaoh and bring the Israelites out of Egypt?" (Exodus 3:11). God reassures him, promising His presence and providing signs to confirm His support.

The Role of Aaron

Despite God's assurances, Moses continues to express his concerns, particularly about his speaking abilities. In response, God appoints Aaron, Moses' brother, to be his spokesperson. God says, "He will speak to the people for you. He will be your spokesman, and it will be as if you were God to him" (Exodus 4:16). Aaron's role is to articulate the messages and commands that God gives to Moses, thus facilitating the communication between Moses and both the Israelites and Pharaoh.

Signs and Wonders

To authenticate their divine commission, God provides Moses and Aaron with signs and wonders. These include the transformation of Moses' staff into a serpent and the ability to turn the Nile's water into blood. God instructs Moses to perform these signs before the Israelites and Pharaoh to demonstrate His power and authority (Exodus 4:2-9).

The Mission to Pharaoh

Moses and Aaron's mission to Pharaoh is fraught with challenges. God warns them that Pharaoh's heart will be hardened, and he will not easily let the Israelites go. Nevertheless, God promises to multiply His signs and wonders in Egypt, ultimately compelling Pharaoh to release His people (Exodus 7:3-4).

Theological Significance

The commissioning of Moses and Aaron underscores several key theological themes. It highlights God's faithfulness to His covenant with the patriarchs, His compassion for His people's suffering, and His sovereign power over earthly rulers. The narrative also emphasizes the importance of obedience and faith, as Moses and Aaron must trust in God's promises despite their initial hesitations and the formidable opposition they face.

In summary, the commissioning of Moses and Aaron is a foundational moment in the history of Israel, setting the stage for the Exodus and the subsequent formation of the Israelite nation under God's guidance.