First high priest of Israel · Brother of Moses

Aaron

Period~1529 BC – ~1407 BC
Summary
The older brother of Moses and the first high priest of Israel, Aaron was the spokesman before Pharaoh and the mediator of the people before God. His life holds both acts of faithful priestly service and a serious fall, the golden calf, which the Old Testament does not hide.
Who was Aaron
Biography

It is hard to live in the shadow of someone God chose for a greater mission, especially when that person is your own brother. Aaron lived with this tension his whole life: called by God, yet always one step behind Moses.

The son of Amram and Jochebed, Aaron was three years older than Moses (Exodus 7:7) and was also Miriam’s brother. When Moses hesitated at the call to free Israel, God appointed Aaron to be his mouth before Pharaoh (Exodus 4:14-16). Together, the two of them confronted the power of Egypt.

Aaron’s staff turned into a serpent before Pharaoh and brought several of the plagues upon Egypt (Exodus 7:9-20). After the crossing of the Red Sea, God set apart Aaron and his sons to serve as the first priests of Israel, with special garments and an altar reserved for them (Exodus 28-29).

But the same mouth that spoke for God also gave in to the pressure of the people. While Moses was on Mount Sinai, Aaron molded a golden calf and the people worshiped it (Exodus 32:1-6). It was a serious fall, coming precisely from the one who already wore the sacred garments of the priesthood.

Despite the failure, Aaron continued serving as high priest. He saw two of his sons, Nadab and Abihu, die for offering unauthorized fire before the Lord (Leviticus 10:1-2). His staff blossomed among those of the twelve tribes, confirming before the whole people that God himself had chosen him (Numbers 17:1-8).

Near the end of the long journey through the wilderness, Aaron joined Moses in an act of unbelief at Meribah and, because of this, was also barred from entering the promised land (Numbers 20:1-12). He died on Mount Hor at 123 years old, succeeded by his son Eleazar (Numbers 33:38-39).

Aaron’s life shows that being called by God does not mean being immune to failure, and that God’s grace keeps working even after a visible fall before everyone. The priesthood he carried was imperfect and pointed to a greater priest, who would intercede without sin (Hebrews 7:26-27). Today, every Christian who serves God, even with known weaknesses, finds in Aaron an honest mirror: the calling is greater than the stumbles of the one who receives it.

Defining verses

He will speak to the people for you, and it will be as if he were your mouth and as if you were God to him.

Exodus 4:16

The LORD bless you and keep you; the LORD make his face shine on you and be gracious to you; the LORD turn his face toward you and give you peace.

Numbers 6:24-26

Because you did not trust in me enough to honor me as holy in the sight of the Israelites, you will not bring this community into the land I give them.

Numbers 20:12

Visions, prophecies, and deeds

Spokesman before Pharaoh

When Moses hesitated because he did not consider himself a good speaker, God appointed Aaron to speak in his place before Pharaoh.

Exodus 4:14-16; 7:1-2

The staff that became a serpent

Before the Egyptian court, Aaron's staff turned into a serpent and swallowed up the staffs of the magicians, a sign of God's power over the gods of Egypt.

Exodus 7:9-12

Consecrated as the first high priest

Aaron and his sons were set apart, dressed in sacred garments, and anointed to serve before the Lord as the first priests of Israel.

Exodus 29; Leviticus 8

The golden calf

Pressured by the people while Moses was on the mountain, Aaron molded an idol in the shape of a calf, one of the greatest failures recorded about him in the Bible.

Exodus 32:1-6

The staff that blossomed

In the midst of a rebellion against his priestly authority, Aaron's staff sprouted, blossomed, and produced almonds overnight, confirming God's calling on him.

Numbers 17:1-8

The incense that stopped the plague

When a plague struck the people because of Korah's rebellion, Aaron ran with incense between the living and the dead to make atonement and stop the death.

Numbers 16:46-48

The priestly blessing

God entrusted Aaron and his sons with the words of the blessing that the priests were to pronounce over the people of Israel.

Numbers 6:22-27
Timeline
~1529 BC

Birth of Aaron

Son of Amram and Jochebed, of the tribe of Levi, three years older than Moses (Exodus 7:7).

~1446 BC

Called to speak for Moses

God appoints him as spokesman before Pharaoh (Exodus 4:14-16).

~1446 BC

The plagues of Egypt

Performs signs with the staff during the confrontation with Pharaoh (Exodus 7-11).

~1445 BC

Consecrated as high priest

He and his sons are set apart for the priesthood at the tabernacle (Exodus 29; Leviticus 8).

~1445 BC

The golden calf

Gives in to the pressure of the people and makes an idol while Moses is on Mount Sinai (Exodus 32).

date uncertain

Death of Nadab and Abihu

Two of his sons die for offering unauthorized fire before the Lord (Leviticus 10:1-2).

~1407 BC

Failure at Meribah

Together with Moses, he doubts before the people and is barred from entering the promised land (Numbers 20:1-12).

~1407 BC

Death on Mount Hor

Dies at 123 years old; his son Eleazar succeeds him as high priest (Numbers 33:38-39).

Portrait

Served as Moses' faithful spokesman before Pharaoh, even without having asked for that prominent role

Was consecrated as the first high priest of Israel, receiving from God the responsibility of mediating between the people and the Lord

Interceded with incense to stop a plague upon the people during Korah's rebellion

Sustained the priesthood for decades, going through the entire wilderness journey to the edge of the promised land

Gave in to the pressure of the people and made the golden calf while Moses was on Mount Sinai

Tried to justify himself before Moses after the incident with the calf, shifting part of the blame onto the people

Doubted God's holiness before the community at Meribah, alongside Moses, and because of this did not enter the promised land

Lessons and legacy
Lessons from their life

Being chosen by God for an important role does not make anyone immune to peer pressure

Spiritual leadership requires courage to say no, even when the majority asks for something else

God disciplines those he loves, but discipline does not cancel the calling or erase the service already rendered

A public mistake does not have to be the last word on the life of someone who keeps serving God

Consistent obedience over decades matters as much as any single moment of faith

Missionary legacy

As the first high priest, he pointed to the need for a mediator between God and the peoples, fulfilled in Jesus

The priestly blessing he received to pronounce over Israel echoes today in missionary prayer for blessing over the nations

His story shows that leaders called by God to reach peoples also need humility to acknowledge failures before the community they lead

The Aaronic priesthood, now closed, reminds the church that every people reached by the gospel becomes part of a royal priesthood

Family and context
Family and relationships
Father Amram (Exodus 6:20)
Mother Jochebed (Exodus 6:20)
Brother Moses (Exodus 7:7)
Sister Miriam (Numbers 26:59)
Wife Elisheba (Exodus 6:23)
Children Nadab, Abihu, Eleazar and Ithamar (Exodus 6:23)
Successor in the priesthood Eleazar (Numbers 20:28)
Nations mentioned

Egypt

Exodus 7-12

Related places

Egypt

Where he confronted Pharaoh alongside Moses (Exodus 7-12)

Mount Sinai

Where he was consecrated high priest and later made the golden calf

Sinai Desert

Present-day Sinai Peninsula, the setting for much of his priestly life

Mount Hor

Present-day Jordan, where he died at 123 years old (Numbers 33:38-39)

Meribah

Where he doubted God before the people and lost the right to enter the promised land

Where to find them in the Bible
Where to find them in the Bible

Aaron's story is told mainly in Exodus, Leviticus, and Numbers, as the brother of Moses and the first high priest of Israel. He is also mentioned in Deuteronomy 10:6 and 1 Chronicles 6:3, and his death is recorded in Numbers 20:22-29 and 33:38-39.

Other people