Bible Studies / Hebrews / Study 20

Why Was Another Priest Needed?

Hebrews · Study 20

Hebrews 7:11–19 Hebrews has established the relationship between Melchizedek and the Levitical priesthood by returning to Abraham’s encounter with the kingpriest in Genesis 14. Abraham gave Melchizedek a tenth and received his blessing. Levi, from whom the later priestly order would arise, was still within the ancestral line represented by Abraham when the encounter occurred. The author’s conclusion was not that the Levitical priesthood lacked divine authority, but that it could not claim superiority over the order represented by Melchizedek. Long before Levi existed, Scripture had already identified Melchizedek as priest of God Most High.

The argument now moves from the relative position of the two priesthoods to the reason another priesthood was necessary at all. God established the Levitical priesthood under the Mosaic covenant. Aaron and his descendants were appointed to serve at the sanctuary, offer sacrifices, and minister on behalf of the people. If that priesthood could accomplish the final purpose for which priesthood was necessary, there would be no reason for Scripture subsequently to announce a different priest according to a different order.

Psalm 110 does exactly that. David writes centuries after the establishment of the Levitical priesthood, while that priesthood remains the divinely appointed institution governing Israel’s worship. Yet God swears concerning another priest, “You are a priest forever according to the order of Melchizedek.” Hebrews treats that declaration as evidence supplied by Scripture itself that the Aaronic order was never intended to be the final form of priesthood. The need for another priest reveals a limitation in the first.

Hebrews 7:11–19 (WEB) Now if perfection was through the Levitical priesthood (for under it the people have received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron?

For the priesthood being changed, there is of necessity a change made also in the law. For he of whom these things are said belongs to another tribe, from which no one has officiated at the altar. For it is evident that our Lord has sprung out of Judah, about which tribe Moses spoke nothing concerning priesthood.

This is yet more abundantly evident, if after the likeness of Melchizedek there arises another priest, who has been made, not after the law of a fleshly commandment, but after the power of an endless life: for it is testified,

“You are a priest forever, according to the order of Melchizedek.” For there is an annulling of a foregoing commandment because of its weakness and uselessness (for the law made nothing perfect), and a bringing in of a better hope, through which we draw near to God.

If Perfection Were Through Levi Hebrews begins with a question: “Now if perfection was through the Levitical priesthood … what further need was there for another priest to arise after the order of Melchizedek?” The question assumes the divine origin of the Levitical priesthood rather than challenging it. God established that priesthood, prescribed its sacrifices, appointed its ministers, and regulated its service. The issue is not whether the Levitical priesthood was legitimate, but what that priesthood was capable of accomplishing.

Hebrews uses the language of perfection. In this context, perfection is not a claim that an individual Israelite needed to achieve moral flawlessness through the Levitical system. The concern is whether that priesthood could bring worshipers to the completed relationship with God for which priestly mediation exists. Verse 19 makes the point explicit by placing perfection alongside drawing near to God: “the law made nothing perfect,” but a better hope has been introduced “through which we draw near to God.”

The Levitical priesthood provided genuine access to God within the covenantal arrangement He had established. Priests ministered at the sanctuary, sacrifices were offered, purification was provided according to the

Law, and the people approached God in the manner He had commanded. Hebrews does not deny any of that. Its argument is that the system did not accomplish the final and complete access to God that would make another priest unnecessary.

Psalm 110 demonstrates the limitation from within Scripture itself. If Aaron’s priesthood had brought the matter to completion, there would have been no need for God later to announce another priest. More significantly, the later revelation does not announce another priest according to Aaron but deliberately identifies another order: “You are a priest forever according to the order of Melchizedek.” The existence of that promise demonstrates that the Levitical priesthood was provisional.

Its limitation is revealed not by an external criticism of the Mosaic covenant but by later revelation from the same God who established it.

The People Received the Law Under the Priesthood Hebrews inserts an important statement into the question: “for under it the people have received the law.” The Levitical priesthood and the Mosaic covenant belong to the same covenantal arrangement. The Law does not establish a generic priesthood that anyone may enter. It establishes a particular priesthood attached to a particular genealogical line. Levi is set apart from the other tribes, and the priestly office itself belongs specifically to Aaron and his descendants.

This is why genealogy mattered so greatly under that system. A man could be faithful, knowledgeable, devoted to God, and descended from Abraham while still possessing no right to serve as an Aaronic priest. Priesthood was not granted according to personal qualification alone; God had designated the family through which the office would operate. That genealogical restriction becomes essential once Jesus is identified as High Priest. Jesus descends from Judah rather than Levi and therefore possesses no claim to Aaron’s office under the legislation governing that priesthood. Hebrews makes no attempt to discover an overlooked genealogical connection or to create an exception for Jesus. His priesthood belongs to another order entirely.

A Change in Priesthood Requires a Change in Law Hebrews continues, “For the priesthood being changed, there is of necessity a change made also in the law.” The immediate context concerns the law governing priesthood. Under the Mosaic arrangement, priestly service belongs to Aaron’s line within Levi. If God appoints a priest from Judah, the legal arrangement by which priesthood was restricted to Aaron’s descendants can no longer govern the new priesthood.

The author immediately explains the problem: “For he of whom these things are said belongs to another tribe, from which no one has officiated at the altar.” Jesus cannot simply be inserted into Aaron’s office while the qualifications governing that office remain unchanged. Doing so would contradict the genealogical structure God Himself established. His priesthood must therefore operate according to another order and under a corresponding arrangement.

This conclusion does not arise from an attempt to escape the requirements of Scripture. Scripture itself establishes the change. The same God who designated Aaron and his descendants for priestly service later swore that another priest would arise according to the order of Melchizedek. Hebrews is following both revelations and recognizing the necessary consequence of placing them together.

Our Lord Came From Judah Hebrews treats Jesus’ tribal ancestry as undisputed: “For it is evident that our Lord has sprung out of Judah, about which tribe Moses spoke nothing concerning priesthood.” His descent from Judah is essential to His identity as the Davidic Messiah. The royal promises belong to David’s house within Judah, but the same ancestry that establishes Jesus within the royal line excludes Him from the Aaronic priesthood.

Moses said nothing about priests arising from Judah. That silence is not treated as permission. Under a genealogically restricted priesthood, belonging to another tribe means that a person does not possess the qualification God established for the office. The Law did not need to provide a list of every tribe prohibited from producing Aaronic priests because it positively designated the family from which those priests were to come.

Psalm 110 resolves the apparent conflict without altering either line. Jesus remains the Davidic king from Judah, while His priesthood does not depend upon descent from Levi. God declares the Messiah to be a priest according to an order that existed before the Levitical priesthood and was never dependent upon Aaronic ancestry. Another Priest According to Melchizedek The argument becomes clearer in verse 15: “This is yet more abundantly evident, if after the likeness of Melchizedek there arises another priest.”

Hebrews is not describing the continuation of Aaron’s line through an unconventional candidate. Another priest has arisen whose priesthood corresponds to the order represented by Melchizedek. The previous discussion has already established why Melchizedek provides the appropriate biblical category. His priesthood precedes Levi and therefore does not depend upon the genealogical requirements later given to Aaron. Genesis identifies him simply as priest of God Most High, and Psalm 110 uses that earlier priest as the pattern for the permanent priesthood of the Messiah. Jesus therefore requires no Aaronic genealogy because He makes no claim to Aaron’s priesthood.

Hebrews now identifies the basis upon which His priesthood does rest: He “has been made, not after the law of a fleshly commandment, but after the power of an endless life.”

The Power of an Endless Life “Fleshly” in this context concerns physical descent and mortal succession rather than sinful carnality. The Aaronic priesthood is transmitted through natural genealogy. A priest qualifies because he belongs to the family God designated, making physical descent an essential part of his legal qualification.

Such an arrangement necessarily produces a succession of priests. One generation of Aaron’s descendants serves until death and is followed by another. The genealogical system preserves the office across generations precisely because no individual priest can remain in that office indefinitely. Christ’s priesthood rests upon a fundamentally different qualification. The contrast is between a commandment governing physical descent and “the power of an endless life.” His priesthood does not depend upon tracing His ancestry through Levi to Aaron, nor does it require descendants who can inherit His office after His death. Jesus died and rose again, and the Priest Himself continues.

Psalm 110 had already supplied the scriptural foundation for such a priesthood: “You are a priest forever, according to the order of Melchizedek.” The declaration does more than authorize a priest from outside Levi. God appoints the person addressed as priest forever. The permanence therefore belongs to the priest Himself rather than to an office preserved through an endless succession of replacements.

The resurrection makes that permanence a reality in Christ. Death repeatedly ended the service of individual Aaronic priests and required another descendant to take their place. Jesus passed through death and continues in life, so His priesthood does not pass to another. The qualification appropriate to His priesthood is therefore not the genealogy required by Aaron’s order but the endless life appropriate to the priesthood God swore would last forever.

The Foregoing Commandment Is Set Aside Hebrews states the consequence in verse 18: “For there is an annulling of a foregoing commandment because of its weakness and uselessness.” The language can sound startling because the commandment under discussion came from God, but its weakness does not mean that God gave a defective command or later corrected a mistake. The weakness concerns the commandment’s ability to accomplish the perfection under discussion.

The priestly legislation successfully did what God appointed it to do within the Mosaic covenant. It identified the priests, regulated their ministry, ordered Israel’s sacrificial worship, and provided the covenantal means by which the people approached God. What it could not do was produce a permanent priest or bring worshipers into the completed access to God for which Hebrews is arguing. The commandment could identify which mortal descendants of Aaron were permitted to serve, but it could not remove their mortality or produce the priest whom Psalm 110 describes as serving forever.

Once that permanent priest arises according to another order, the earlier command governing priestly qualification no longer governs the priesthood through which God’s people draw near. It belonged to the Levitical order and served the purpose for which God gave it, but Psalm 110 itself demonstrates that God intended a priesthood beyond it.

The Law Made Nothing Perfect Hebrews explains the limitation with the statement, “for the law made nothing perfect.” Read within the argument, this is not a declaration that the Mosaic covenant accomplished nothing or that its institutions were worthless. Hebrews repeatedly appeals to the Old Testament as the authoritative Word of God, and the Law supplied the priestly and sacrificial categories through which the work of Christ is being explained. Its limitation concerns perfection. The sacrifices continued, priests continued to minister, and new priests replaced those who died. Access to the sanctuary remained regulated and restricted. The continuing structure testified that the completed condition had not yet arrived. If the Levitical system had perfected the worshiper in the sense Hebrews describes, the announcement of another priesthood would have been unnecessary.

Psalm 110 therefore reveals something about the intended function of the earlier arrangement. God did not establish Aaron’s priesthood as the final form of priestly mediation and then unexpectedly replace it when it failed. The later promise shows that the first priesthood belonged to an arrangement that anticipated something beyond itself. Its inability to perfect was a limitation of its appointed function, not a failure of God’s design.

A Better Hope The contrast at the end of verse 19 is between an arrangement that could not bring the matter to completion and “a better hope, through which we draw near to God.” That final phrase identifies the purpose toward which the entire argument about priesthood has been moving. Priesthood exists to mediate access to God, so the decisive question is whether the priest and the arrangement under which he serves can actually bring God’s people into the completed access for which that mediation exists. The Levitical priesthood provided the access God appointed under the Mosaic covenant, but its structure could not provide permanent mediation. Its priests qualified through descent, served for the duration of their lives, and were replaced when they died. The continuation of the institution depended upon a succession of mortal priests.

The priesthood of Christ operates on a different basis. Jesus comes from Judah and makes no genealogical claim upon Aaron’s office. God appoints

Him according to the order of Melchizedek, and His qualification rests upon the power of an endless life. The change in priesthood therefore requires a corresponding change in the command governing priestly qualification, because the Aaronic legislation cannot govern a priesthood that does not belong to Aaron.

Another priest was needed because the Levitical priesthood could not make perfect. Psalm 110 announced that priest while the Levitical order still stood, identifying Him with another order and establishing His priesthood by the oath of God. In Christ, that promise has reached its fulfillment. The result is not merely another priest performing the same temporary ministry under different genealogical qualifications, but a better hope through which God’s people draw near to Him.