In Mormonism (The Church of Jesus Christ of Latter-day Saints), the Aaronic Priesthood is considered the “Lesser Priesthood” and is typically held by young men starting at age 12. These young men serve in offices such as Deacon, Teacher, and Priest, where they perform tasks like passing the sacrament (communion) and collecting offerings. While the LDS church views this as a restoration of the ancient biblical order, a close look at the Bible reveals significant differences in who was allowed to serve, the age requirements, and the purpose of the office.
The Biblical Requirement Of Lineage
The most immediate difference between the biblical Aaronic priesthood and the LDS version is the requirement of ancestry. In the Old Testament, you couldn’t simply be “worthy” or “called” by a local leader to be an Aaronic priest. You had to be a literal, biological descendant of Aaron, from the tribe of Levi. God established this as a perpetual statute for Aaron’s family alone.
Numbers 3:10 You shall appoint Aaron and his sons, and they shall attend to their priesthood; but the outsider who comes near shall be put to death.
In the Bible, “outsiders”—which included any Israelite not from the line of Aaron—were strictly forbidden from performing priestly duties. In contrast, the LDS church ordains young men from any ethnic or ancestral background to the Aaronic priesthood. While this makes the office more accessible, it shifts the definition away from the specific, hereditary covenant God made with the house of Aaron in the wilderness.
Age And Maturity In The Priesthood
Another major distinction is the age of the participants. In the LDS church, boys as young as 12 are ordained as Deacons. However, the Bible sets a much higher age for those entering service in the Tabernacle or Temple. According to the Law of Moses, Levites began their formal service at age 25 or 30, after years of observation and preparation.
The biblical priesthood was a high-stakes, adult responsibility. These men handled heavy physical labor, the slaughtering of large animals, and the meticulous care of sacred furniture. It wasn’t a “youth program” designed for spiritual development; it was a professional, lifelong vocation for grown men. By lowering the age to 12, the LDS system changes the nature of the priesthood from a solemn, adult sacrificial ministry to a rite of passage for teenagers.
The Purpose: Sacrifice Vs. Administration
The primary job of a biblical Aaronic priest was to manage the sacrificial system. Their hands were constantly bloody as they offered lambs, goats, and bulls to make atonement for the sins of Israel. They were the bridge between a holy God and a sinful people, showing that “without the shedding of blood, there is no forgiveness” (Hebrews 9:22).
In Mormonism, the duties of the Aaronic priesthood are largely administrative and liturgical. They pass bread and water during Sunday services, perform baptisms, and assist with church maintenance. While these are helpful tasks, they are fundamentally different from the “preparatory gospel” of the Old Testament, which was entirely centered on blood sacrifice pointing toward Jesus. The Bible teaches that the sacrificial system ended when Jesus—the Lamb of God—died on the cross. Therefore, from a biblical perspective, the office of a sacrificial Aaronic priest is no longer necessary.
The “One Mediator” Problem
The New Testament makes it clear that the earthly Aaronic priesthood was a temporary “shadow” that vanished when the “reality” arrived in Jesus. The book of Hebrews explains that the old priesthood was flawed because the priests were sinners who died. We now have a better priest, Jesus, who serves in a better sanctuary.
Claiming to “restore” a human Aaronic priesthood can unintentionally distract from the truth that we now have direct access to God. We don’t need a 12-year-old or any other human “priesthood holder” to mediate our worship or our standing with God. Because of Jesus, every believer—regardless of age, gender, or tribe—has the “priestly” right to enter God’s presence through prayer and faith.
The “Restoration” That Misses The Mark
One of the most significant claims of the LDS church is that they have “restored” the primitive church exactly as it existed in the New Testament. However, their version of the Aaronic priesthood is actually a perfect example of how this “restoration” misses the mark. When we look at the early church in the Book of Acts and the letters of Paul, we don’t see a single instance of young boys being ordained to a “lesser” Aaronic priesthood. In fact, the early church understood that the Aaronic system had been completely retired.
By reintroducing a human priesthood with various levels and offices, the LDS system actually leans backward toward the Old Testament “shadows” that Jesus came to replace. The early apostles taught that the old system was “obsolete” because the New Covenant had arrived (Hebrews 8:13). Instead of restoring the early church, the LDS system creates a hybrid that looks more like a modern organizational hierarchy than the Spirit-led body of believers described in the New Testament. True restoration isn’t about bringing back old rituals; it’s about returning to the simple, direct access to God that Jesus provided for everyone.
The Takeaway
The LDS Aaronic priesthood is a modern organizational system for young men, but it bears little resemblance to the hereditary, sacrificial office described in the Bible. While it’s great to see young people serving in their churches, the Bible tells us that the old system of human mediators was fulfilled in Jesus. Today, we don’t need to look for a restored “lesser” priesthood because we have the “greatest” High Priest in Jesus Christ, who has already opened the way for us to talk to God directly.
