The answer is: Aaron

Num 26:59 - Miriam was their sister. Aaron was 3 years older than Moses (Exo 7:7).

Moses' family is quite fascinating! Aaron, who served as Moses' mouthpiece and first high priest, plays a vital role within the Exodus narrative. Their sister Miriam also adds a lot of depth to the story. The three siblings gathered to lead the Israelites out of Egypt, showcasing a remarkable sibling dynamic, but each had distinct responsibilities. While Moses did the talking to Pharaoh, Aaron handled the everyday rituals, helping guide the Israelites in their new religious identity.

Aaron was three years older than Moses and was honored to lead worship and offer sacrifices, establishing a significant priestly lineage; this tradition got carried on throughout the Israelite history. Have you ever noticed the striking connection between Aaron assembling the golden calf when Moses delayed on Mount Sinai (Exo 32) and his later role as the dedicated high priest? It's a prime example of human imperfection – an echo reminding us that even the closest to God can make mistakes.

Moreover, Miriam, beyond just being a supportive sister, is often celebrated as a prophetess. She played the tambourine after the Red Sea splitting in a moment of unbridled joy (Exo 15:20-21). Her active involvement suggests that worship and celebration were communal affairs in the ancient context and reveals the vibrant culture of early Israelite celebrations. So the heritage of Moses, Aaron, and Miriam beautifully deepens our understanding of faith in fellowship!