Anyone Not Against Us Is for Us
January 13, 2026
Theological Summary
Key insights and takeaways from the text.
This passage from Mark and Luke presents a pivotal lesson on spiritual exclusivity versus inclusivity within the nascent Christian movement. John, one of Jesus' closest disciples, observes someone casting out demons in Jesus' name and attempts to stop him because he is "not one of us." This reveals a common human tendency, even among believers, to define the boundaries of God's work too narrowly, often equating God's kingdom with their own immediate circle or organization. The central message of Jesus' response is a radical reorientation of this perspective: genuine ministry, done in His name, is to be affirmed and encouraged, regardless of the practitioner's immediate affiliation with the disciples' inner group. He emphatically states, "Do not stop him, for no one who does a miracle in my name can in the next moment say anything bad about me, for whoever is not against us is for us." This challenges the very notion of spiritual elitism and calls for a broader understanding of God's diverse methods and workers. Key theological concepts emerge powerfully from this encounter. Firstly, regarding identity in Christ, Jesus makes it clear that the authority and power for ministry come from His name, not from the specific group or institution one belongs to. The man's effectiveness was rooted in the name of Jesus, not his membership card to the Twelve. This underscores that our identity and authority as believers are derived solely from Christ. Secondly, concerning mission, the passage emphasizes that the ultimate goal is the advancement of God's kingdom, which transcends human-made organizational lines. The driving out of demons was unequivocally a good and God-honoring work, bringing freedom and demonstrating divine power, and should therefore be celebrated rather than hindered due to perceived lack of affiliation. Thirdly, the concept of unity is broadened significantly by Jesus' declaration, "whoever is not against us is for us." This calls believers to look beyond denominational, theological, or methodological differences to recognize fellow laborers who are genuinely working to glorify Christ and further His mission. It's a call to collaborative spirit over competitive rivalry within the Body of Christ. The practical application for believers today is profound. We are challenged to avoid spiritual tribalism and sectarianism, which often manifest as criticizing or dismissing ministries simply because they do not align perfectly with our own church, denomination, or preferred theological camp. Instead, we are called to a generous spirit, recognizing and affirming all genuine work done in the name of Jesus, even if it comes from unexpected sources. This means focusing on the fruit of the Spirit and the glory given to Christ, rather than the institutional label. Furthermore, Jesus' specific mention of giving "a cup of water in my name because you belong to the Messiah" highlights that even the smallest acts of kindness and service, done with Christ-centered motives, are noticed and rewarded by God. This encourages believers that every genuine effort to serve others for Christ's sake holds eternal significance, regardless of its perceived magnitude. This passage profoundly points to the character and work of God. It reveals a God whose kingdom is expansive and whose grace is abundant, not limited by human boundaries or preferences. He is a God who is passionately committed to His redemptive mission and delights in seeing His will done and His name glorified through various means and people. His primary concern is the authenticity and effectiveness of the work done in His Son's name, not the exclusive club membership of the doer. The assurance of reward for even a cup of water underscores God's meticulous recognition and faithful recompense for all genuine service, revealing Him as a just and loving Father who sees and values every act of love extended in the name of His Son. It compels us to embrace a wider vision of God's kingdom, fostering unity and collaboration among all who are truly for Christ.
Scripture
Mark 9:38-41; Luke 9:49-50
Old Testament Connections
"However, two men, whose names were Eldad and Medad, had remained in the camp. They were among those listed, but they had not gone out to the tent, yet the Spirit also rested on them, and they prophesied in the camp. A young man ran and told Moses, "Eldad and Medad are prophesying in the camp." Joshua son of Nun, who had been Moses' aide since youth, spoke up and said, "Moses, my lord, stop them!" But Moses replied, "Are you jealous for my sake? I wish that all the Lord's people were prophets and that the Lord would put his Spirit on all of them!""
Numbers 11 foreshadows Jesus' teaching on the inclusiveness of God's work, as both passages show leaders (Moses and Jesus) rebuking followers who want to restrict divine power and ministry to only their recognized group. They both affirm that God's Spirit and power can operate beyond established boundaries, and those who are not actively against God's work are in fact for it.
"Do not withhold good from those to whom it is due, when it is in your power to act."
Jesus's instruction in Mark/Luke not to hinder those doing good in His name, even if they are outside the immediate circle, aligns with Proverbs 3:27's wisdom. The Proverb advises against withholding good when it is in one's power to act, which Jesus applies by commanding his disciples not to obstruct beneficial actions done in His authority.
A Moment of Prayer
A prayer inspired by today's topic.
Heavenly Father, thank You for the reminder that Your kingdom is expansive and inclusive. Help us to see allies where we might expect adversaries, and to embrace those who, though different, are working towards good. May we lay aside our narrow views and rejoice in every hand extended for truth and love, knowing that anyone not against us is for us, by Your grace. Amen.
Historical Context
The world behind the Word.
Sermons2 Found

Are You Gatekeeping The Gospel? | Mark 9:38-41
Vince Miller

Mark 9:38-41 | Daily Devotionals
Healing Place Church