On the Offense with Faith and Freedom: What the Department of War Renaming Teaches the Church
Dr. Perry Greene reflects on the renewed use of “Department of War” as a way to examine posture—not only for national defense, but for the Christian church. The issue is not merely what a department is called, but what a name signals about readiness, resolve, and mission. Readers will learn how Dr. Greene connects that public-policy moment to Matthew 16, Ephesians 6, Luke 14, and Hebrews 12, urging believers to advance truth with spiritual weapons rather than retreat into private faith.
In this episode of GodNAmerica, Dr. Perry Greene uses a national development as a lens for a larger spiritual concern. President Donald Trump’s September 2025 executive order authorized the Department of Defense to use “Department of War” as a secondary title, while statutory references to the Department of Defense remain controlling unless changed by law. Dr. Greene focuses on what the renewed title communicates: strength, readiness, and a posture aimed at victory rather than mere preservation.
For Dr. Greene, the issue reaches beyond military language. He presents the name change as a prompt for Christians to examine the posture of the church and the republic. Words matter because they can reveal assumptions, priorities, and expectations. A nation that describes its military in terms of defense may communicate one kind of posture. A nation that revives the language of war may communicate another. Dr. Greene’s point is not simply that a name changes outcomes. His deeper concern is whether people and institutions are living in a way that matches what they claim to be.
He looks back to America’s earlier military history and notes that the War Department title stretches back to the founding era. The post-World War II restructuring of American military administration eventually moved the country toward Department of Defense language. Dr. Greene sees the renewed use of “Department of War” as a signal that the nation should not only defend against threats, but act proactively to deter tyranny. That same question of posture becomes the bridge to Christian discipleship.
The central biblical image Dr. Greene turns to is Jesus’ promise in Matthew 16:18: “On this rock I will build my church, and the gates of Hades shall not prevail against it.” He emphasizes the word “build.” In his reading, Christ presents the church not as a fragile institution waiting to be overrun, but as a people being built and sent forward under the authority of the risen Lord.
Dr. Greene also draws attention to the image of gates. Gates are defensive structures. They are built to keep attackers out. By highlighting that detail, he argues that Jesus’ promise describes the church as advancing against the strongholds of darkness, not merely hiding behind protective walls. The church stands firm, but it does not only stand still. It endures opposition, but it also moves forward in truth.
That distinction matters because Dr. Greene warns against a faith that becomes confined to “holy hours” or church property. When Christians reserve faith for Sunday gatherings, religious buildings, or private conversations only, they risk becoming reactive rather than proactive. The result can be a defensive posture in which believers only respond after confusion spreads, after cultural pressure grows, or after harm has already taken root.
Dr. Greene presents a different picture. The church does not merely survive oppression. It overcomes through the authority of Christ and continues forward. This does not mean Christians are called to earthly aggression, coercion, or hostility. Dr. Greene is careful to ground the Christian battle in spiritual terms. Ephesians 6:10-11 instructs believers to “be strong in the Lord and in the power of His might” and to “put on the whole armor of God” in order to stand against the schemes of the devil.
That passage shapes the kind of offensive faith Dr. Greene describes. The church advances, but it advances with spiritual weapons. It fights with truth, love, and the gospel. It does not imitate the methods of earthly power, and it does not confuse spiritual courage with cruelty. The Christian call is to confront sin, oppression, and spiritual darkness with the tools Christ gives His people.
Dr. Greene offers three applications for the moment. The first concerns “state and soul.” Just as the nation may reexamine titles and posture, churches must ask whether they have become passive. Are they only protecting what they already have, or are they advancing truth, mercy, and righteousness into dark places? That question pushes believers beyond institutional maintenance. A church can preserve programs, buildings, and routines while losing its willingness to carry truth into the public square and compassion into places of need.
The second application concerns identity and action. Dr. Greene observes that a name can signal something important, but behavior must match identity. If a nation calls its military a defense department, it may communicate passivity. If the church becomes silent or purely private, it may communicate fear. The deeper issue is whether public confession and public conduct are aligned. Christians cannot rely on labels alone. The name “church” does not automatically prove spiritual vitality, courage, or obedience.
The third application concerns responsibility and resolve. Dr. Greene says the Department of War’s message is that a nation will wage war against its enemies. He draws a spiritual parallel: Christians are called to wage war against sin, oppression, and the darkness of the enemy. Yet he immediately qualifies that message by naming the weapons of the Christian life. The weapons are spiritual. The church fights with truth, love, and the gospel—but it still fights.
That emphasis helps keep the message from becoming merely symbolic. Dr. Greene states plainly that names and titles do not save. A department called by the name of war cannot guarantee military victory. A group called a church does not automatically become spiritually effective. The question is whether the people behind the name are living according to the mission the name implies.
That is why Dr. Greene presses the church toward integrity. Believers must be who they claim to be: a Christ-witnessing community. That kind of community cannot be content with religious branding. It must display faithfulness in doctrine, courage in public witness, mercy toward the weak, defense of the innocent, and a willingness to advance righteousness where darkness has taken root.
Dr. Greene also brings in Jesus’ warning from Luke 14:31-32, where a king preparing for war must first count the cost. This reference adds sobriety to the message. Offensive faith is not reckless emotionalism. It is not loud rhetoric without sacrifice. It requires serious consideration of what faithfulness may demand. Christians must count the cost of truth-telling, service, mercy, public witness, repentance, and obedience.
At the same time, counting the cost is not an excuse for delay or fear. In Dr. Greene’s framework, sober resolve and spiritual courage belong together. The church should not pretend the battle is easy, but it also should not act as though Christ has left His people powerless. The risen Christ is the source of the church’s authority, confidence, and mission.
Hebrews 12:28 gives Dr. Greene another foundation: “Since we are receiving a kingdom which cannot be shaken, let us have grace by which we may serve God acceptably with reverence and godly fear.” The church advances because it receives an unshakable kingdom, not because it is driven by panic. Its posture is not rooted in anxiety about losing cultural influence, but in confidence that Christ’s kingdom is secure.
This shapes the daily application of the message. Families can ask whether faith is shaping ordinary decisions or being reserved for religious moments only. Churches can ask whether worship gatherings are producing outward action in truth, mercy, and righteousness. Leaders can ask whether their language of conviction is matched by patient service, courage, and integrity. Citizens can ask whether love for country and loyalty to Christ are being expressed with seriousness, humility, and moral clarity.
Dr. Greene’s call to offensive faith is practical. It means proclaiming truth without embarrassment. It means serving the weak instead of overlooking them. It means defending the innocent rather than waiting for someone else to act. It means advancing righteousness without turning faith into fear-driven outrage. It means recognizing that spiritual warfare is real while refusing to fight with fleshly weapons.
The point is not that every believer will serve in the same way. Some will teach, some will mentor, some will serve quietly, some will speak publicly, some will protect vulnerable people, and some will strengthen families and churches from within. The shared calling is not sameness of role, but faithfulness of posture. Dr. Greene challenges Christians to stop thinking of faith as something merely to protect and start seeing it as something to carry forward.
The renewed use of “Department of War” becomes, in Dr. Greene’s message, a reminder that words and posture matter. But the deeper test is always conduct. A name may communicate resolve, but only action reveals whether that resolve is real. For the church, the charge is clear: do not cower, do not retreat into silence, and do not mistake survival for mission. Christ has already won the war, and He commissions His people to carry His victory into the world with truth, love, courage, reverence, and grace.
TL;DR
Dr. Perry Greene uses the renewed “Department of War” title as a lens for examining posture, readiness, and resolve.
He argues that the issue is not only military language, but also the posture of the Christian church.
Matthew 16:18 is central to his message: Christ builds His church, and the gates of Hades do not prevail against it.
Dr. Greene emphasizes that gates are defensive symbols, meaning the church is pictured as advancing rather than hiding.
Christians risk living defensively when faith is confined to church property, Sunday hours, or private life only.
Ephesians 6:10-11 grounds the battle in spiritual terms: believers stand strong in the Lord and put on the armor of God.
Dr. Greene says the church fights with truth, love, and the gospel—not with earthly weapons.
Names and titles matter, but they do not guarantee effectiveness. Believers must live according to their identity.
Luke 14 reminds Christians to count the cost, and Hebrews 12 points them to the unshakable kingdom they receive.
The practical call is to advance truth, serve the weak, defend the innocent, and carry Christ’s victory into the world.
Discussion + Reflection Section
Discussion Questions
What does Dr. Greene mean when he contrasts a defensive posture with an offensive posture of faith?
How does the image of “the gates of Hades” shape the way Christians should understand the mission of the church?
Where might believers be tempted to keep faith private because of fear, pressure, or convenience?
Why is it important that Dr. Greene describes Christian weapons as truth, love, and the gospel?
What does it look like for a church to be a “Christ-witnessing community” rather than merely a group with a religious title?
Apply It This Week
Identify one area where faith has become too private, passive, or reactive, and choose one concrete step toward faithful action.
Look for one opportunity to advance truth with love in a conversation, workplace, family setting, or community space.
Serve someone weak, overlooked, or vulnerable in a practical way without seeking attention for it.
Pray through the cost of obedience and ask God for courage that is both bold and reverent.
Prayer Prompt
Lord, give Your church courage to move forward in truth, love, and the gospel. Guard believers from fear, passivity, and pride. Teach Your people to count the cost, serve with reverence, defend the innocent, and carry the victory of Christ into the world with grace. Amen.