Sunday, October 19, 2025

The Proof of the Heart ("the proof of the pudding is the pudding itself") - Sermon on the 18th Sunday after Trinity

 The Proof of the Heart

Text: James 2:14-26 (with references to Mark 10:17-27 & Ephesians 5:15-20)


Grace and peace to you from God our Father and the Lord Jesus Christ. Amen.

Dear brothers and sisters in Christ,

If you’ve been in the Lutheran church for any length of time, you know our cornerstone. It is our battle cry and our comfort: We are saved by grace through faith, apart from works of the law. This is the beautiful, liberating truth that sets us free from the crushing burden of having to earn God’s love.

And then we open the book of James, and we hear this: “What good is it, my brothers and sisters, if someone claims to have faith but has no deeds? Can such faith save them?” (James 2:14).

It can feel like a contradiction, can’t it? It can make us uncomfortable. It’s like James is crashing our grace-filled party with a checklist of good works. Martin Luther himself struggled with this book, calling it an “epistle of straw” precisely because he feared it would be used to drag us back into the slavery of earning our salvation.

But my friends, what if James isn’t contradicting Paul? What if he is, instead, giving us a vital diagnostic tool? What if he is asking us a question that cuts to the very heart of our life here, in this complex and beautiful nation we call home?

James is not asking, “How do you get faith?” He is asking, “What does your faith look like once you have it?” He’s drawing a stark distinction between a living faith and a dead one.

He gives a simple, piercing example: “Suppose a brother or sister is without clothes and daily food. If one of you says to them, ‘Go in peace; keep warm and well fed,’ but does nothing about their physical needs, what good is it?” (v. 15-16).

We don’t have to look far to see this scenario play out. We live surrounded by brothers and sisters in need. We see it in the economic inequality that scars our landscape, in the poverty that persists, in the young man standing at the robot, in the domestic worker who travels hours to clean our homes. The need is vast, and it can feel overwhelming. And our response, so often, is the response James condemns: “Go in peace.” We offer a polite, distant blessing, but our hands remain closed. Our schedules remain full of our own concerns. Our lives remain comfortably separate.

James calls that faith dead.

This is the uncomfortable word of God’s Law. It holds up a mirror and shows us not what we profess, but what we practice. It shows us a faith that is all claim and no action, all talk and no walk. It’s like a tree that appears to have life, but when you look for fruit, there is none. The tree is dead.

This Law finds its full force in our reading from Mark. The rich young man is the epitome of respectable, intellectual faith. He knows the commandments. He’s kept them since he was a boy. But when Jesus tells him to sell his possessions and give to the poor, he walks away sad, because his wealth was his true god. His faith was in his own moral record and his comfortable life, not in the person of Jesus Christ.

And this, my friends, is the diagnosis for us. For those of us who have lived with privilege, with comfort, with a history of separation, the great danger is not that we reject Jesus, but that we create a Jesus who fits neatly into our lives—a private Jesus who demands nothing of our wallets, our time, or our deeply ingrained prejudices. A Jesus who asks only for our Sunday morning attendance, but not for our Monday morning integration. A Jesus who blesses our “Go in peace,” but never commands us to actually get involved.

This Law is meant to crush us. It is meant to show us the idolatry of our own comfort. It is meant to drive us to ask with the terrified disciples, “Who then can be saved?”

And here, at the point of despair, the Gospel breaks through. Jesus looks at them, and he looks at us, and he says, “With man this is impossible, but not with God; all things are possible with God” (Mark 10:27).

Salvation is impossible for you. It is impossible for me. We cannot generate a living faith from our own dead hearts. But with God, it is possible. He has done the impossible in the life, death, and resurrection of His Son, Jesus. Your salvation is secure. It is finished. Your standing before God does not depend on your perfect track record of good deeds. It rests solely on the finished work of Christ, received by the gift of faith.

So, if we are saved by grace, why does James bother us with deeds? Because a faith that has been given life by the Holy Spirit cannot remain dead! A tree that has living roots will, by its very nature, bear fruit.

This is where Ephesians shows us the way. “Be filled with the Spirit,” Paul says (Eph. 5:18). The power for the Christian life does not come from our own guilt or willpower. It comes from being continually filled with God’s own Spirit. The good works James demands are not the cause of our salvation; they are the fruit of the Spirit who lives within us. We do not work for God’s love; we work from God’s love.

So what does this living faith look like for us, here, now?

It looks like a faith that is no longer content with just “Go in peace.” It is a faith that is stirred to action by the Spirit. It is a faith that understands that our “brothers and sisters” in James’s example are not just the people who look like us or speak our language. They are our fellow South Africans, all created in the image of God, all for whom Christ died.

It may not mean selling all we have, but it will mean asking the Spirit to show us what idol we need to sell. Is it the idol of fear? Of prejudice? Of comfort? Of power? It means asking for wisdom to live not as unwise, but as wise, making the most of every opportunity in these complex days (Eph. 5:15-16).

A living faith might look like:

  • Intentionally building a real relationship with the people who work in our homes and gardens, seeing them as fellow God image-bearers.
  • Using some of our time to volunteer or support a ministry that addresses poverty or education.
  • Partnering with a sister church in a different community for a specific, humble project.
  • Simply making the conscious, Spirit-led effort to greet, acknowledge, and show Christ-like kindness to people of all races in our shops and streets, breaking down the walls that history has built.

This is not a call to fix South Africa. That is God’s work. This is a call to a living, active, costly faith that proves the reality of the Christ who lives in us. It is the proof of the heart that has been truly captured by grace.

You are saved by grace, through faith. That is your anchor. That is your hope. Now go, and live like it. Let the world see the proof of your heart, not for your own glory, but for the glory of the God who loved you first, and who empowers you to love your neighbor.

In the name of the Father, and of the Son, and of the Holy Spirit. Amen.

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