The first high priest of the Israelites was AARON, who was the brother of Moses. He was appointed by God to serve as the leader of the Israelites and to lead them in their worship of God. AARON was responsible for offering sacrifices to God and for leading the people in prayer. He was also responsible for interpreting the laws of God and for teaching the people about God's will. AARON was a key figure in the history of the Israelites and is remembered for his faithfulness and devotion to God.