King James Version

What Does Mark 3:15 Mean?

Mark 3:15 in the King James Version says “And to have power to heal sicknesses, and to cast out devils: — study this verse from Mark chapter 3 with commentary, cross-references, and original Greek word analysis.

And to have power to heal sicknesses, and to cast out devils:

Mark 3:15 · KJV


Context

13

And he goeth up into a mountain, and calleth unto him whom he would: and they came unto him.

14

And he ordained twelve, that they should be with him, and that he might send them forth to preach,

15

And to have power to heal sicknesses, and to cast out devils:

16

And Simon he surnamed Peter;

17

And James the son of Zebedee, and John the brother of James; and he surnamed them Boanerges, which is, The sons of thunder:


Commentary

KJV Study Commentary
Jesus appointed the Twelve 'that he might send them forth to preach, and to have power to heal sicknesses, and to cast out devils.' The purpose was twofold: preaching (κηρύσσειν—heralding, proclaiming) and miraculous authentication. Preaching was primary; miracles were confirmatory signs. 'Apostle' (ἀπόστολος) means 'sent one'—commissioned representative with delegated authority. Jesus' giving disciples His authority demonstrates confidence in sovereign power working through weak instruments. Reformed theology emphasizes Christ's authority mediates through apostolic testimony preserved in Scripture.

KJV Study — Public Domain

Historical & Cultural Context

The concept of authorized representatives was familiar—rabbis sent delegates (shaliach) with authority. Jesus transformed this into apostolic office—eyewitnesses commissioned to proclaim Christ and establish church. The Twelve symbolize restored Israel under Messiah. Their authority to heal and exorcise validated message, demonstrating kingdom power. After Pentecost, apostles performed miraculous signs authenticating gospel (Acts 2:43; 5:12; 2 Corinthians 12:12; Hebrews 2:3-4).

Reflection Questions

  1. How does Christ's delegation to weak disciples encourage you in ministry?
  2. What relationship exists between preaching gospel and demonstrating kingdom power?
  3. How does apostolic authority, preserved in Scripture, govern church today?

Original Language Analysis

Greek · 10 words
καὶ1 of 10

And

G2532

and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words

ἔχειν2 of 10

to have

G2192

to hold (used in very various applications, literally or figuratively, direct or remote; such as possession; ability, contiuity, relation, or conditio

ἐξουσίαν3 of 10

power

G1849

privilege, i.e., (subjectively) force, capacity, competency, freedom, or (objectively) mastery (concretely, magistrate, superhuman, potentate, token o

θεραπεύειν4 of 10

to heal

G2323

to wait upon menially, i.e., (figuratively) to adore (god), or (specially) to relieve (of disease)

τὰς5 of 10
G3588

the (sometimes to be supplied, at others omitted, in english idiom)

νόσους6 of 10

sicknesses

G3554

a malady (rarely figuratively, of moral disability)

καὶ7 of 10

And

G2532

and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words

ἐκβάλλειν8 of 10

to cast out

G1544

to eject (literally or figuratively)

τὰ9 of 10
G3588

the (sometimes to be supplied, at others omitted, in english idiom)

δαιμόνια·10 of 10

devils

G1140

a daemonic being; by extension a deity


Study Guide

Historical Context

This verse is found in the book of Mark. Understanding the historical and cultural background helps illuminate its meaning for the original audience and for us today.

Theological Significance

Mark 3:15 contributes to our understanding of God's character and His relationship with humanity. Consider how this verse connects to the broader themes of Scripture.

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