Nathan Kirby: A Fighter for Men

Nathan, World champion, husband, father, grandfather, mentor, and a man whose greatest victory was choosing Christ

World champion. Husband. Father. Grandfather. Mentor. Behind every title stands a man whose greatest victory was not won inside a ring, but through surrendering his life to Jesus Christ.

Nathan knows what it means to fight.

Long before becoming a professional mixed martial arts world champion and Brazilian jiu-jitsu black belt, he was a little boy trying to understand why his biological father left before he was born. He endured abuse, poverty, homelessness, and the feeling that no one truly saw the heart hidden beneath his toughness.

For years, anger became his armor. It made him believe he had nothing to lose, but it also kept him believing he had nothing to live for.

Then grace found him.

Nathan discovered that Jesus could reach the places physical strength could not protect. Through Christ, forgiveness gave him freedom, faith gave him purpose, and love taught him how to become the husband, father, and grandfather he never had.

Today, Nathan uses his testimony to fight for other men. He encourages them to confront their wounds, overcome destructive habits, honor their wives, lead their families, and become the men God created them to be.

His greatest desire is not to be remembered for championships or recognition. He wants his life to point people toward Christ. He wants the wounded to know they are not forgotten and the broken to understand that God is not finished with them.

Beyond the Titles

Andrea: When you look back at the little boy whose biological father left before he was born and who later experienced abuse, what would you say to him today?

Nathan: It was not you. It was not your fault, and it was never because you were unworthy. You feel different because you are different. God chose you, and your life has a purpose.

Andrea: How did the pain and anger of your childhood shape you?

Nathan: It made me feel as though I had nothing to lose because, for a long time, I believed I had nothing. Physical pain did not scare me, and poverty did not control me.

Anger became my fuel. Whenever someone doubted me, something inside me would say, “Oh yeah? Watch me.”

That determination made me stronger, but the anger also came close to controlling me.

Andrea: When did you realize that unforgiveness was hurting you?

Nathan: I knew my anger could destroy friendships, jobs and opportunities, but I carried it like a sword. Holding on to it allowed me to remain comfortable with being nothing and going nowhere because my pain gave my existence significance.

Everything changed when I discovered grace and mercy. Forgiveness gave me freedom. God filled the emptiest parts of me, and I understood that I did not have to carry the pain anymore.

When Grace Found Him

Andrea: Can you describe the moment when you first felt Jesus calling you?

Nathan: The first tug on my heart came during the early years of our marriage. My wife was pregnant with our first child, and we attended an event in Florida.

A pastor spoke that Sunday. I had never attended church or heard a pastor preach before.

He said, “If you feel God calling you, walk to the front.”

My eyes filled with tears. I stood up and asked my wife to go with me, but she said no. I did not yet have the confidence or leadership to take that step alone, so I sat back down.

But a seed had been planted. A few years later, I watched my friend’s mother get baptized, and for the first time, I felt the presence of the Holy Spirit.

Andrea: You and your wife eventually found Christ and were baptized together. How did that change your marriage?

Nathan: On December 2, 2001, in Washington, Iowa, we were baptized together. My wife came from a Jehovah’s Witness background, while I came from abuse, turmoil and no experience with church. God brought our different stories together and led us both to Christ.

We joined a marriage group at our church, and that decision helped save our marriage.

Neither of us had been shown what a biblical marriage looked like. Day by day and year by year, Scripture entered our hearts. We grew together, matured in our faith and learned to give each other grace.

His Greatest Accomplishment

Nathan with his wife and family, the people he considers among his greatest blessings and accomplishments

Andrea: You are a world champion, coach, actor, minister, speaker, and business owner. Which accomplishment carries the deepest meaning?

Nathan: My greatest accomplishment is becoming a spiritual leader for my family.

It is knowing Christ and placing Him at the center of our marriage. It is having the courage to place my hands upon my wife and pray over her. Many men have physical strength, but true strength is found in leading your family with humility, love, and prayer.

It is also knowing that both of our sons accepted Christ and were baptized. I now watch our oldest son love his wife and raise his children with tenderness and devotion. He is a wonderful husband and father, and I am incredibly proud of him.

Those things mean more to me than any championship.

Breaking Generational Pain

Andrea: What values did you work hardest to instill in your sons?

Nathan: Honor, respect, and an understanding of the individual gifts God gave them.

Whatever they chose to do, they were expected to do it with their whole hearts and with integrity. We taught them never to settle for mediocrity.

There is no honor in quitting because you are afraid to fail. The honor is found in trying and fighting despite the fear.

Andrea: What has becoming a grandfather awakened in your heart?

Nathan: Sometimes I kneel in front of a child in my class, look into that child’s eyes and say, “You have so much potential.” Then I remember that no one did that for me.

No one played catch with me, took me on vacation, or told me I was loved, cherished, and special.

When my wife and I accepted Christ, we decided the generational pain would end with us. We would become the beginning of something new. We would give our children and grandchildren the love we never received.

Family is everything to me. I have driven thousands of miles to visit my sons and grandchildren, sometimes traveling through the night and sleeping in my vehicle so I could arrive at their home in the morning.

Love is sacrifice, and they are worth every mile.

A Different Kind of Fight

Andrea: How has fighting physically prepared you for spiritual battles?

Nathan: Physical challenges do not frighten me. I have trained my body, lifted tremendous weight, and learned how to fight, but none of that power is a match for the enemy.

I cannot fight a spiritual battle with my hands. My faith has to remain strong. I must stay in the Word, spend time with God, and protect my marriage and family.

We must remain on guard.

Andrea: Which personal battle required the greatest courage?

Nathan: The battle against the flesh. I have now been sober from drugs and alcohol for twenty-five years. With God’s help, I have also overcome pornography, gambling, and other distractions that once held power over my life.

Today, I mentor men and couples fighting similar battles. The enemy wants men distracted because a distracted man is less prepared to lead, protect, and serve his family.

Freedom requires honesty, accountability, discipline, and complete surrender to God.

Nathan understands the battles many men are afraid to discuss. He knows what it feels like to hide pain beneath anger and mistake hardness for strength.

His message is direct but compassionate. True strength is not found in pretending you do not hurt. It is found in confronting that pain and surrendering it to God.

Nathan fights for men because he understands that when one man is healed, an entire family can begin healing with him.

Let Me Reach One More

Andrea: Why is it important for you to speak openly about Jesus?

Nathan: I am tired of being quiet. I believe God placed this fire and passion in my heart for a reason.

Sometimes I wonder what my life might have looked like if someone had shared the Gospel with me when I was a frightened child being groomed and abused. What if someone had told me about God’s love and mercy before I made choices that changed my life?

Now I think about the one person I might meet in a gym, on a movie set, at an event, or online. What if sharing Jesus with that one person changes a life? What if that person then helps change the world?

I cannot remain silent when someone may be waiting to hear that hope is still possible.

Andrea: What would you say to someone who feels abandoned, angry, or too broken to begin again?

Nathan: Hold on. God has something more for you.

He wants to use your story, your strength, and even your pain, but you must turn toward Him. Speak honestly to God. Tell Him you believe. Thank Him for Jesus, His sacrifice, and His love.

God is not finished with you. You were created for more than the pain you are experiencing today. You are a son or daughter of the one true King.

Andrea: When every title is set aside, who is Nathan at heart?

Nathan: If people think of me and do not see Christ, then I have failed.

I hope they remember sacrifice, passion, purpose, and possibility. Everything that happened to you, whether good or bad, has brought you to this moment, and you are still here.

You still have breath in your lungs and fire in your soul. You have work to do. Let’s get to it.

Andrea’s Closing Reflection

Nathan’s story reminds us that the greatest fighters are not always those who defeat an opponent inside a ring. Sometimes, they are the ones who confront their wounds, forgive those who hurt them, and decide that the pain will not continue into another generation.

The world may recognize Nathan as a champion, but his heart reveals something far greater. He is a husband who prays over his wife, a father who taught his sons to live with honor, a grandfather determined to give the love he never received, and a servant of God asking to reach one more life.

Most importantly, Nathan is a fighter for men.

His testimony is not the story of a perfect man. It is the testimony of a surrendered man who allowed Jesus to transform his pain into purpose.

Nathan survived many battles, but his greatest victory was choosing Christ.

It was not your fault. You are not forgotten. God is not finished with you. Your story can still be redeemed.