Salt, Light, a City on a Hill and a Justice Oriented Faith
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Salt, Light, a City on a Hill and a Justice Oriented Faith
Herb Montgomery | February 6, 2026
If you’d like to listen to this week’s article in podcast version click on the image below:
Our reading this week is from the gospel of Matthew:
“You are the salt of the earth; but if salt has lost its taste, how can its saltiness be restored? It is no longer good for anything, but is thrown out and trampled under foot. You are the light of the world. A city built on a hill cannot be hid. No one after lighting a lamp puts it under the bushel basket, but on the lampstand, 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 in heaven.
Do not think that I have come to abolish the law or the prophets; I have come not to abolish but to fulfill. For truly I tell you, until heaven and earth pass away, not one letter, not one stroke of a letter, will pass from the law until all is accomplished. Therefore, whoever breaks one of the least of these commandments, and teaches others to do the same, will be called least in the kingdom of heaven; but whoever does them and teaches them will be called great in the kingdom of heaven. For I tell you, unless your righteousness exceeds that of the scribes and Pharisees, you will never enter the kingdom of heaven.” (Matthew 5:13-20)
This week’s reading has multiple themes worth looking at. Let’s begin with the metaphor of Jesus followers being “salt.” When Jesus tells his listeners, “You are the salt of the earth,” he draws on an image of something that is earthy, practical, and quietly subversive. In the ancient world, salt was not a luxury garnish but a necessity. It preserved food from decay, brought out flavor, and in Jesus’ own culture was often associated with making covenants. Read through the lens of our justice work today, the metaphor could also point to a community whose presence actively resists corruption and nurtures life in the midst of systems that harm and exploit. Let’s see.
Salt preserves by slowing decay. In a social context, this suggests a calling to confront and restrain forces that degrade human dignity such as poverty, racism, patriarchy, xenophobia, violence, and economic exploitation. To be “salt” is not to retreat into purity but to be mixed into the realities of the world, especially where suffering is acute. Salt only works when it comes into contact with what is spoiling. Likewise, justice-oriented faith requires proximity to injustice and a willingness to be changed by that encounter.
Salt also enhances flavor. This points to the positive, creative dimension of justice work: cultivating communities where hope, equity, and mutual care can flourish. Justice is not only about naming what is wrong but about helping life taste more fully human. In a just society, policies, economies, and institutions are shaped around compassion and shared wellbeing rather than profit or power alone.
Finally, Jesus warns that salt can lose its saltiness. In social justice terms, this is a caution against accommodation and complacency. When faith communities absorb the values of domination or individualism, they lose their distinctiveness and moral force. To remain “salty” is to stay grounded in solidarity with the marginalized and committed to transformation, even when such commitment is costly. “You are the salt of the earth” calls for an engaged, courageous presence: even only in small doses, salt is still capable of preserving life and bringing out its best flavors.
Next let’s consider Jesus’ image of a “city on a hill.” This imagery has often been lifted out of its context and repurposed to describe nations, power, or exceptionalism. Writers from the United States, notably, have used this image to describe their country. Yet in the Sermon on the Mount, Jesus is not addressing empires or nations. He is instead speaking to a marginalized community of disciples living under Roman occupation, and calling them into a distinctive way of life shaped by God’s justice. Jesus’ metaphor is ethical, not nationalistic.
A city on a hill is visible not because it dominates, but because it cannot hide. In the same breath, Jesus speaks of light, good works, and glorifying God. The “light” he envisions in this chapter is the concrete practice of compassion and justice, peacemaking, and solidarity with the poor that he has just described in the Beatitudes. This city shines when people who hunger and thirst for justice forgive debts, refuse violence, and love their neighbors and their enemies. Its visibility comes from lived faithfulness, not military might, economic supremacy, or cultural dominance.
So to read the “city on a hill” as a nation-state is to invert Jesus’ meaning. Empires seek to be seen through power; Jesus instead calls his followers to be seen through compassion and a justice that results in peace. The city he imagines is not built by coercion or exclusion but by communities that embody God’s reign, the Kingdom. That kingdom is God’s just future where the vulnerable are protected, resources are shared, and humanity is restored. This kind of visibility often brings risk, not praise, because it exposes injustice and challenges systems of exploitation.
Jesus’ words call his followers, not countries, to account. The question is not whether a nation shines, but whether Jesus-following communities reflect the justice and mercy of God in public and unmistakable ways. When followers of Jesus engage their world by organizing for things such as fair wages, welcoming migrants, and resisting racism, all while standing alongside those harmed by unjust systems, they became that city on a hill. Their light points beyond themselves, not to national glory, but to the character of the Jesus they follow and the world his teachings have led them to not only imagine, but also to work to shape.
This makes even more sense when we hold it in the context of the image of a lamp on a lampstand. Jesus’ lampstand image calls followers to let justice-shaped faith be publicly visible. Light is not meant to be hidden in private piety or confined to personal morality while injustice persists around it and while the world burns. The saying challenges communities to place their values where they can illuminate real conditions of harm and inequality. A lamp on a stand exposes what is broken and guides others toward safer, more just paths. When Christians advocate for the oppressed, confront unjust systems, and practice compassion openly, their faith demonstrated through their choices and actions “gives light to everyone in the house.”
Lastly let’s consider Jesus’ words, “Do not think that I have come to abolish the law or the prophets; I have come not to abolish but to fulfill them” (Matthew 5:17). These words are often heard as a theological clarification, but they are also a deeply social and political statement. Spoken to people living under Roman occupation and local elites who benefited from systems of exploitation, this declaration situates Jesus firmly within Israel’s long tradition of justice-seeking faith. These words signal continuity with the ethical and societal justice demands of the Torah and the prophets, and challenge any religion that divorces faith from the well-being of the vulnerable.
The “law and the prophets” were never merely about ritual observance or abstract morality. Torah and the prophetic tradition were concerned with concrete social realities: fair treatment of the poor, protection of widows and orphans, limits on wealth accumulation, hospitality to the stranger/migrant, and resistance to oppression. When prophets like Amos, Isaiah, and Micah condemned Israel, they did so not because people lacked religious zeal, but because they practiced worship while neglecting justice. By declaring that he fulfills rather than abolishes this tradition, Jesus affirms that God’s concern for justice is ongoing and non-negotiable.
In Matthew’s Gospel, fulfilling the law meant that Jesus consistently deepened and intensified the law’s ethical intent: justice for the vulnerable and marginalized. Matthew’s gospel moves beyond surface compliance, and Matthew’s Jesus opposes violence, promotes community, and extends love even to enemies. In social justice terms, Jesus’ fulfillment exposes systems that technically obey rules while producing harm. It critiques structures that claim legality or tradition while perpetuating inequality, exclusion, or violence.
Jesus’ teaching also resists the use of the law as a tool of domination. In his context, legal interpretations were often shaped by those in power to protect their own interests. By reclaiming the law’s original purpose of human flourishing and communal well-being, Jesus challenges both religious and political authorities alike. His fulfillment of the law centers those most impacted by injustice: the poor, the sick, the marginalized, and the outcast. This orientation suggests that any interpretation of faith that harms the vulnerable is a betrayal of the law’s true intent.
Today, Jesus’ words caution against forms of Christianity that dismiss social responsibility in favor of spiritualized belief or personal salvation alone. They also challenge movements that appeal to “biblical values” while ignoring the prophetic demand for justice. Faithfulness to Jesus does not mean abandoning moral traditions or prophetic critique; it means carrying them forward in ways that confront contemporary injustices such as economic exploitation, racism, patriarchy, LGBTQ discrimination, mistreatment of migrant communities, and more.
“Do not think that I have come to abolish the law or the prophets” is ultimately a call to a justice-shaped faith. It insists that following Jesus means participating in the long, unfinished work of aligning social life with God’s vision of justice, compassion, and liberation: the hope of both the law and the prophets.
Discussion Group Questions
1. Share something that spoke to you from this week’s podcast episode with your discussion group.
2. What does a justice-oriented faith look like for you? Share and discuss with your group.
3. What can you do this week, big or small, to continue setting in motion the work of shaping our world into a safe, compassionate, just home for everyone?
Thanks for checking in with us, today.
I want to say a special thank you to all of our supporters out there. And if you would like to join them in supporting Renewed Heart Ministries’ work you can do so by going to renewedheartministries.com and clicking donate.
My latest book Finding Jesus: A Fundamentalist Preacher Discovers the Socio-Political and Economic Teachings of the Gospels is available now on Amazon in paperback, Kindle and also on Audible in audio book format.
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Right where you are, keep living in love, choosing compassion, taking action, and working toward justice.
I love each of you dearly,
I’ll see you next week.
New Episode of The Social Jesus Podcast
A podcast where we talk about the intersection of faith and social justice and what a first century, prophet of the poor from Galilee might have to offer us today in our work of love, compassion and justice.
This week:
Season 3 Episode 6: Salt, Light, a City on a Hill and a Justice Oriented Faith
Matthew 5:13-20
Today, Jesus’ words caution against forms of Christianity that dismiss social responsibility in favor of spiritualized belief or personal salvation alone. They also challenge movements that appeal to “biblical values” while ignoring the prophetic demand for justice. Faithfulness to Jesus does not mean abandoning moral traditions or prophetic critique; it means carrying them forward in ways that confront contemporary injustices such as economic exploitation, racism, patriarchy, LGBTQ discrimination, mistreatment of migrant communities, and more. This passage is ultimately a call to a justice-shaped faith. It insists that following Jesus means participating in the long, unfinished work of aligning social life with God’s vision of justice, compassion, and liberation: the hope of both the law and the prophets.
Available on all major podcast carriers and at:
Finding Jesus: A Fundamentalist Preacher Discovers the Socio-Political & Economic Teachings of the Gospels.
by Herb Montgomery
Available now on Amazon!
In Finding Jesus, author Herb Montgomery delves into the profound and often overlooked political dimensions of the gospels. Through meticulous analysis of biblical texts, historical context, and social discourse, this thought-provoking book unveils the gospels’ socio-political, economic teachings as rooted in a profound concern for justice, compassion, and the well-being of the marginalized. The book navigates the intersections between faith and societal justice, presenting a compelling argument for a more socially engaged and transformative Christianity.
Finding Jesus is not just a scholarly exploration; it is a call to action. It challenges readers to reevaluate their understanding of Christianity’s role in public life and to consider how the radical teachings of the gospels can inspire a renewed commitment to justice, equality, and compassion. This book is a must-read for those seeking a deeper understanding of the social implications of Christian faith and a blueprint for building a more just and inclusive society.
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