Week #1: A City That Cannot Be Hidden
Blog Series Intention Recap
City on a Hill: Living Out Your Faith
Yeshua (Jesus) told His followers, "You are the light of the world. A city set on a hill cannot be hidden" (Matthew 5:14, ESV). Our faith was never meant to stay hidden.
City on a Hill is a four-week Theology Thursday series about what it means to live faithfully in the world while we wait for Yeshua to return. The Church has a unique place in God's plan in this present age. We are not here to build the promised kingdom, replace Israel, or retreat from a world that desperately needs the gospel. We are here to follow Yeshua, make disciples, love our neighbors, do good, and make the truth of the gospel visible through the way we live.
The world should not only hear what Christians believe. It should be able to see the difference our faith makes.
This page is a post in the series “City on a Hill: Living out Your Faith.” Click here to see the rest of the posts.
Let’s jump into Week #1:
"A City That Cannot Be Hidden"...
Most Christians can explain what they believe, at least in outline. A harder question is where anyone else would notice it. If a coworker, a neighbor, or the person who cuts your hair had to describe your faith using only what they have seen, what would they say?
Yeshua expected an answer. Near the beginning of the Sermon on the Mount, He told His disciples that they were the salt of the earth and the light of the world, and that a city set on a hill cannot be hidden. He wasn't handing them a goal to reach someday. Salt and light described the life He expected His disciples to live.
Why it Matters:
Yeshua calls His followers salt and light as a statement of fact about who they are.
Following Yeshua produces a faith that can be seen. It can't stay entirely private.
Salt that loses its saltiness and a lamp under a basket picture two ways to lose our witness: blending in and hiding.
The light belongs to Yeshua. We shine because God has shone in us.
The purpose of visible faith is glory to the Father, not attention for ourselves.
Yeshua first spoke these words to His Jewish disciples before the cross, and the apostles carry the same principle into the life of the Church.
Go Deeper:
Many believers quietly assume that faith is a private matter. It shapes what happens inside us and on Sunday mornings, and the rest of life runs on the same terms as everyone else's. Others feel the opposite pull: the world is dark and getting darker, so the safest thing is to keep our heads down and our circles small until the Lord comes back.
Yeshua's words challenge both instincts. A faith that follows Him will show. The real question is what people see when they look.
This also matters for how we understand our place in God's plan. The Church lives between the King's first coming and His return. How we live in the meantime is the subject of this whole series, and it starts with a simple claim: following Yeshua produces a faith that can be seen.
Who Was Yeshua Talking To?
It's worth reading Matthew 5 in its setting before applying it. Yeshua was speaking to His Jewish disciples in Galilee, before the cross, while the Law of Moses was still in force. The Church had not yet begun, and the Sermon on the Mount was not written as a charter for it. Reading it carefully means letting it speak first to the people who heard it.
At the same time, the principle Yeshua teaches here doesn't stay in Galilee. When the apostles write to churches made up of Jewish and Gentile believers, they reach for the same language. Paul tells the Ephesians, "for at one time you were darkness, but now you are light in the Lord. Walk as children of light" (Ephesians 5:8, ESV). He tells the Philippians they "shine as lights in the world" (Philippians 2:15, ESV).
So we aren't lifting a verse out of context and pasting it onto the Church. We're following a line that runs from Yeshua's words to His disciples into the New Testament's teaching for believers today: people who belong to Him are meant to be seen.
"You Are"
Yeshua doesn't say, "Try to become salt," or "Work toward being light." He says, "You are the salt of the earth" and "You are the light of the world" (Matthew 5:13–14, ESV).
Yeshua begins with who they already are. They are salt. They are light. Living visibly as His followers grows out of that identity. Something has happened to people who follow Him, and what has happened to them will show.
These words come right after the Beatitudes, so the people Yeshua calls salt and light are the poor in spirit, the mourners, the meek, the merciful, the peacemakers, and those who are insulted and persecuted for His sake (Matthew 5:3–12). They aren't the powerful or the popular. The light of the world, in Yeshua's description, looks like ordinary people living a very different kind of life, sometimes at real cost.
A visible faith, then, has little to do with celebrity or influence. A single mother who is honest at work when it costs her something is more visible, in the sense Yeshua means, than a Christian with a large platform and a life that looks like everyone else's.
Salt That Has Lost Its Taste
"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." (Matthew 5:13, ESV)
Salt was valuable in the ancient world for preserving and seasoning food. But Yeshua's point doesn't require us to know its exact chemical makeup. Salt that no longer did what salt was supposed to do was useless.
And here is where the image gets uncomfortable. Christians can remain surrounded by people who need Yeshua while gradually becoming indistinguishable from them. We absorb the world's values, its speech, its priorities, and its way of treating people until there's nothing left that anyone would recognize as different. We can still look like Christians on paper while having lost what made us useful.
A Lamp Under a Basket
"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." (Matthew 5:14–15, ESV)
A typical home in Yeshua's day had one main room and one small clay oil lamp. Nobody lit that lamp and then covered it with a basket. The whole point of lighting it was to put it up where the entire house could see by it.
A town built on a hilltop works the same way. At night, its lights can be seen for miles. It doesn't have to try to be seen. It simply can't be hidden.
The lamp warns about the opposite danger, which is hiding. Instead of absorbing the world's ways, we pull away from the people around us. We keep our faith behind closed doors, limit our lives to other Christians, and stay quiet out of fear, fatigue, or a sense that the world isn't worth the effort anymore. The light is still lit, but nobody outside the basket benefits from it.
Blending in and hiding look like opposites, but they end in the same place. In both cases, the people around us never see the difference Yeshua makes.
Whose Light Is It?
If all of this sounds like pressure to perform, it helps to remember where the light comes from. Yeshua said of Himself, "I am the light of the world. Whoever follows me will not walk in darkness, but will have the light of life" (John 8:12, ESV).
He is the light. His followers are light because they are joined to Him. Paul describes salvation itself in those terms:
"For God, who said, 'Let light shine out of darkness,' has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ." (2 Corinthians 4:6, ESV)
The light didn't originate with us. God shone into our darkness, and now that light becomes visible in the way we live.
Careful readers of Matthew sometimes ask a related question. In chapter 6, Yeshua warns, "Beware of practicing your righteousness before other people in order to be seen by them" (Matthew 6:1, ESV). How can He say "let your light shine before others" in chapter 5 and warn against doing righteousness before others in chapter 6?
The answer is in where the glory goes. In Matthew 6, the goal is to be seen by them, and the reward is their admiration. In Matthew 5, the goal is that people "may see your good works and give glory to your Father who is in heaven" (Matthew 5:16, ESV). Good works done the way Yeshua describes point people past us to the Father.
How Does This Help Me Understand "A City That Cannot Be Hidden"?
Following Yeshua produces a faith that can be seen. That is what Yeshua meant when He called His disciples salt and light, and it is what the apostles meant when they told the churches to walk as children of light.
This is where the recurring truth of the series comes from: The world should not only hear what Christians believe. It should be able to see the difference our faith makes.
The Church lives between promise and fulfillment. The King has come, died, and risen, and one day He will return to establish His promised kingdom. Until then, our responsibility is not to establish the kingdom by our own efforts. We represent its coming King by living faithfully in the world He has sent us into.
Taking the Basket Off
So how do we live as a city on a hill this week?
Ask the honest question. Think about the people who see you most often outside of church. If they described your faith only by what they have observed, what would they say? Let the answer guide your prayers rather than your guilt.
Stay in contact. Salt can't do anything from inside the jar. Look for ways to stay present in your neighborhood, workplace, and family instead of retreating into Christian-only spaces. Faithfulness usually looks like showing up in the same places, over and over, as a different kind of person.
Stay distinct. Pick one area where your life has started to look like everyone else's. It might be the way you talk about people who aren't in the room, how you handle money, or how you treat people who can't do anything for you. Ask the Lord to make that area different.
Point upward. When someone notices something good in your life, don't let the credit stop with you. Tell them where it came from. Visible faith is meant to lead people to the Father, and at some point that means putting the gospel into words.
Visible faith also rests on confidence that God will finish what He has promised.
Trust the promises still ahead. Living faithfully means learning to trust God's promises even when their fulfillment is still ahead. That includes the promises He has made to Israel. The Church's calling in this present age does not erase what God has promised the Jewish people. Take time this week to read Romans 11 and ask what God's faithfulness to Israel teaches you about His faithfulness to you.
A city set on a hill cannot be hidden. People are already looking. The question is whether what they see points them to Yeshua.
