What does “all authority in heaven and earth” mean?

And Jesus came up and spoke to them, saying, “All authority has been given to Me in heaven and on earth. Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit, teaching them to observe all that I commanded you; and lo, I am with you always, even to the end of the age.”

Matthew 28:18–20

Verse 18 opens the Great Commission. Its declaration, “all authority … in heaven and earth has been given to Me”, serves as the foundation or warrant for the commands that follow in verses 19–20. The phrase is emphatic: Jesus claims universal authority, across both heavenly and earthly realms, as the basis for sending His disciples out to make more disciples.

To understand its meaning, one must consider:

1. The meaning of the Greek term behind “authority.”
2. The scope of “all … in heaven and earth.”
3. The timing and source of that “giving.”
4. How this authority functions in the life and mission of the church.

Let us examine each of those.

The Greek Word Exousia (“Authority”)

The term translated “authority” is the Greek ἐξουσία (exousia), which carries the sense of delegated or rightful power to act or to command. It is not merely raw power or force; it includes legitimacy or rightful jurisdiction. In the New Testament, exousia is used in various contexts: to refer to Jesus’ authority to forgive sins, to the delegated authority of the apostles, to spiritual authorities (angels, demonic powers), etc.

Thus when Jesus says “all authority has been given to Me,” He is claiming not just infinite power in an abstract sense, but the legitimate right to govern, command, direct, and enact His will across all realms.

Roland Barnes, for example, notes that exousia “literally means ‘that which arises out of being’” – i.e. “the right to rule that arises out of the present conditions (state of being)” and that Jesus’ rightful rule comes from His identity as the victorious Lord over sin, death, and hell.

The Scope: “in heaven and earth”

The phrase “in heaven and on earth” indicates the totality of created, moral, and spiritual realms. By saying “in heaven and earth,” the text is not limiting His authority to the earthly domain (humans, nations, creation) but also to the invisible or spiritual realm (angelic beings, spiritual realities). The effect is to assert that no sphere exists outside Jesus’ jurisdiction.

This universal scope underscores that the commission given to His disciples is not merely a human or earthly task, but a cosmic one. The mission of the church is grounded not in human autonomy, but under the lordship of Christ over all that is.

The “Giving” of Authority: When and How?

One tension arises: if Jesus is divine (co-equal with the Father), how is it that “all authority … has been given to” Him? Doesn’t He already possess it eternally?

a) Eternal Lordship and Mediatorial Reception

Many theologians resolve this by distinguishing between Jesus’ eternal deity and His incarnational, mediatorial role. As the eternal Son, Jesus shares fully in divine sovereignty. Yet in the economy of redemption, through His incarnation, death, resurrection, and exaltation, He is “given” (or vindicated in) the full exercise of universal authority in a new mediate way.

Barnes argues that while the Son of God always possessed authority, in the incarnation He voluntarily limited the exercise of that authority. But after His triumph over sin and death, in His exalted state, God the Father “restored” or “gave” Him full public exercise of that authority.

Similarly, learned expositions of Matthew note that Matthew 28:18 reflects the consummation of Jesus’ mission: His resurrection and exaltation vindicate Him and effect the transfer or acknowledgment of authority over all things to Him.

In other words, “has been given” does not deny His eternal deity, but speaks to the moment in redemptive history when the Father publicly commissions Christ in the role of cosmic Lord and King.

b) Biblical Parallels

There are other New Testament passages that echo the idea of the Father handing over all things to the Son. For instance:

• In John 13:3, the text says that Jesus “knew that the Father had given all things into His hands.”
• In Philippians 2:9–11, God “highly exalted Him and gave Him the name that is above every name… that at the name of Jesus every knee should bow …”
• Ephesians 1:20–22 speaks of God raising Christ and seating Him “far above all rule and authority and power and dominion … And He put all things under His feet and gave Him as head over all things to the church.”

Thus, Matthew 28:18 partakes in a broader New Testament motif of the Father entrusting cosmic sovereignty to the Son, especially as the risen-exalted Christ.

The Function: Authority as the Basis for Mission and Discipleship

Why does Jesus begin the Great Commission with that declaration of universal authority? The purpose is clear: to ground the missionary mandate in the lordship of Christ. Because He holds all authority, His disciples can confidently “go” (v. 19), make disciples, baptize, and teach. Their mission is not optional or human-centered, but commanded under the reign of Christ.

Ligonier’s commentary draws this out: Jesus commissions His people to go under His comprehensive authority to proclaim the forgiveness of sins in His name. The resurrection and ascension inaugurate a new epoch in redemptive history, Christ reigns and sends His church.

Thus the Great Commission is not just a strategy for church growth, but an exercise in extending the rule of the risen Christ over all nations. The authority declared in verse 18 is the root; the commands in verses 19–20 are the branches issuing from that root.

Implications and Reflections

Here are several reflections and implications on what “all authority … in heaven and earth” means for Christian belief and life:

• Christ’s universal sovereignty: No power, human or spiritual, lies outside of Christ’s dominion. Satan, demons, nations, powers — all are under His ultimate authority.
• Mission grounded in authority: The church does not act on its own initiative but by Christ’s command, empowered and guaranteed by His sovereign backing.
• Legitimacy and obedience: The authority of Christ gives legitimacy to Christian witness, baptism, teaching, church discipline, and spiritual warfare. Disciples are not called to act arbitrarily but under the lordship of Jesus.
• Confidence amid adversity: Knowing that Christ holds all authority gives believers confidence when facing opposition, persecution, or spiritual hostility.
• Delegated authority: Jesus, in His sovereignty, delegates authority to His church (e.g. to baptize, teach, bind and loose) but always within the bounds of His will and mission.
• Eschatological hope: The full consummation of Christ’s universal rule may not yet be visibly realized everywhere, but the declaration in Matthew 28:18 points to a future where all creation submits to Him.

Conclusion

When Jesus declares in Matthew 28:18, “All authority has been given to Me in heaven and on earth,” He is proclaiming His universal, rightful, and sovereign rule over all realms, both visible and invisible. This authority is not abstract, it is the foundation and guarantee of the Great Commission, undergirding the mission of the church.

Though the phrase uses the language of "having been given," it does not deny Christ’s eternal deity; rather it expresses how, in redemptive history through His resurrection and exaltation, God the Father has publicly entrusted (or vindicated) to Christ the comprehensive exercise of sovereign authority. Under that authority, the church is sent to make disciples, baptize, teach, and extend Christ’s reign until the end of the age.