You Are Salt and Light: Why the Resurrection Still Matters

A little over forty years ago, British-American author Os Guinness published a book that still lands hard today. In The Gravedigger File, he said the Christian faith largely created the modern world but is now being undermined by it, making the church its own "gravedigger." He imagined an underground organization with a goal of getting Christians to believe their faith is "privately engaging but socially and culturally irrelevant." A private hobby. A personal comfort. Something you do on Sunday morning and politely leave at the sanctuary door on your way home.

The question pressing on any believer in 2026 is: does this actually matter outside the walls of the building? If you have just started following Jesus - maybe you came to faith this Easter, or you are stepping back into church after a long time away - you might be wondering the same thing a lot of us wonder: what difference does my faith make outside the walls of the building? Did Jesus rise from the dead just so I could feel peaceful on the inside? Or does His resurrection mean something for the world I actually live in - my work, my city, my kids' school, my Monday morning?

I preached on this passage at Christchurch Miami this past Sunday. The answer Jesus gives in Matthew 5 is more personal than you might expect.

The Scripture

"You are the salt of the earth, but if salt has lost its taste, how shall its saltiness be restored? It is no longer good for anything except to be thrown out and trampled under people's feet. You are the light of the world. A city set on a hill cannot be hidden. Nor do people light a lamp and put it under a basket, but on a stand, and it gives light to all in the house. In the same way, let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven."

- Matthew 5:13-16 (ESV)

"You Are" Is a Declaration, Not a Command

Read the passage again slowly. Notice what Jesus does not say.

He does not say, "Try to become salt." He does not say, "If you work hard enough, you might one day qualify as light." He says, "You are." Present tense. Already true. In the original Greek, the verb mood is what grammarians call the indicative - meaning Jesus is describing present reality, not issuing an assignment.

That distinction changes everything, especially for a new Christian who sometimes feels like a spiritual imposter. You are not an apprentice waiting to graduate. You are not a candidate hoping for promotion. The moment you placed your faith in the risen Christ, Jesus looked at you and said: you already are what I need you to be. Now live like it.

What Salt Does

In the first-century world Jesus was speaking into, salt was not a condiment you shook on fries. Without refrigeration, salt was how food survived. It preserved. It protected against decay. Jesus is telling His followers, in effect: you are the thing standing between your culture and its own decay. Not because you are better than anyone else. Because you belong to the One who is making all things new.

Salt also does something gentler. It seasons. It brings out flavor. A Christian is not supposed to be the person every conversation goes quiet around - the designated disapprover, the spiritual killjoy. You are meant to make the table of your life - your home, your office, your friendships - more hospitable, not less.

What Light Does

Light does not announce itself. It just is, and wherever it goes, darkness stops winning. Jesus says "a city set on a hill cannot be hidden." That is not a threat. It is a promise. You are already visible. People already see your life. The only real question is what your shining is pointing toward.

What the Resurrection Has Done to the World

Here is where The Gravedigger File question gets answered head-on. Because if the Christian faith were really privately engaging but culturally irrelevant, the last two thousand years of human history would look wildly different than they actually do.

Start with something you already hold in your hand. The calendar on your phone is organized around a Jewish carpenter from Nazareth. There was a time before Him and a time after Him, and we count the years that way. This blog post is dated April 19, 2026 - twenty what? Twenty centuries since the birth of Jesus Christ. His life is the hinge of history.

Now go wider. The United States' national birth certificate, The Declaration of Independence, declares that "all men are created equal and are endowed by their Creator with certain unalienable rights." You cannot get that sentence from any other worldview. It does not come from Hinduism, Buddhism, Confucianism, Islam, atheism or secular progressivism. It comes from the Bible's insistence that every human being is made in the image of God (Genesis 1:26-28) and is therefore priceless.

The Red Cross was founded in 1859 by a Reformed Christian named Jean Henri Dunant, who was on his way to Italy to do a business deal when he saw the carnage of the Battle of Solferino and said, as a Christian, I have to do something about this. The abolition of slavery in the British Empire was led by a small group of committed Christians - John Wesley, William Wilberforce, William Pitt - who spent decades arguing that human beings bearing the image of God must not be treated as property. American abolitionists made the same case on the same grounds.

Modern science traces its roots not to skepticism but to northern and western Europe after the Protestant Reformation. Early European scientists believed that a rational God had made a rational universe, operating by natural laws (which required a Lawgiver), and that human beings - made in His image - could study it. Modern medicine grows out of that same impulse and is in many ways the continuation of Jesus' own ministry of healing; count the hospitals all over the world with names like Mercy, St. Mary's, Baptist, Presbyterian, etc. Public education came out of Geneva, Switzerland where John Calvin insisted that ordinary people, not just the nobility, deserved to be educated, especially so they could read the Bible. Every Ivy League school in the United States except the University of Pennsylvania was founded to train ministers of the gospel. The modern American civil rights movement was led by men like the Reverend Dr. Martin Luther King, Jr. Evangelical, Catholic and other followers of Christ are at the vanguard of sanctity of human rights efforts such as the pro-life movement and anti-human trafficking work.

The pattern is unmistakable. As I said Sunday, wherever suffering and injustice and slavery exist, the gospel goes and people are uplifted.

The music of Bach and Handel. The visual art of Da Vinci, Michelangelo, Rembrandt, and Rafael. Literature like The Lord of the Rings, The Chronicles of Narnia and yes, even Harry Potter (!) - all inspired by the gospel of God's grace made manifest in Jesus Christ.

None of that is a private mental exercise. It is a two-thousand-year record of a risen Lord reshaping everything He touches. The resurrection of Jesus Christ is not a mood, it is a movement - the most consequential one in human history.

Live the Life

Jesus tells you who you already are - salt, light, preserving, seasoning, visible, shining - and the last two thousand years tell you what happens when people actually believe Him.

So what does that look like on Monday morning for you?

It starts small. It looks like integrity in a job where cutting corners would be easier. It looks like patience with a difficult coworker. It looks like being the kind of neighbor who notices when something is wrong. It looks like forgiving someone who hurt you when you have every right to hold a grudge. It looks like telling the truth when a lie would be more convenient. It looks like giving generously, even sacrificially - of your time, your money, your attention - to people who cannot pay you back.

It also looks like not privatizing your faith. Not hiding your hope. Not filing following Jesus away as a Sunday-only category. This is who and what you are - now, be who you are.

You do not have to become salt. You are salt. You do not have to become light. You are light. The resurrection of Jesus Christ made you that. Your job this week is not to manufacture a spiritual identity you do not have. It is to live the one you already received.

A Simple Way to Start

If you are new to following Jesus, pick one relationship this week where you have been dim, and turn the lamp up. One coworker you have been avoiding. One family member you have been short with. One neighbor you have never actually met. Salt and light do not require a platform or a title. They require presence.

Where This Leaves Us

Napoleon Bonaparte, who conquered most of Europe with his army and then died in exile, once wrote that he, Alexander the Great and Caesar had built their empires on force - but Jesus built His on love, and millions of men to this very day would still die for Him. Napoleon understood what The Gravedigger File conspiracy wants you to forget: the Christian faith is not just a private matter. It is the most consequential movement in human history, and the risen Christ is still doing it through ordinary people.

Easter Sunday was two weeks ago. The stone is still rolled away. The tomb is still empty. And Jesus, who is alive today, has looked you in the eye and told you what you are.

Go. Live the life.

Taking Your Next Step

If this post stirred something in you - whether you have been following Jesus for decades or you are just starting to wonder if He is real - we would love to help you take the next step. The best place to start is a community group at Christchurch Miami. It is where new believers and seasoned ones sit together around scripture, questions, and coffee, and figure out what it looks like to live the life Monday through Saturday. Find a group here, explore more sermons and reflections on our blog, or join us for worship Sunday at 11 AM at 8485 SW 112th St in Kendall.

Common Questions About Salt, Light, and the Resurrection

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