“We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time.” –T.S. Eliot
Join me in the always-expanding adventure of growing in our Faith, Hope, & Love.
Why I Write.
I write primarily to encourage Spanish River Church, the congregation I serve in South Florida. What helps them will hopefully help others, too. Being a Pastor means serving saints and cynics, the searching and the sorrowing, at the intersection of grace and brokenness, pointing with hope to Jesus the Savior of sinners
Pick Up Where You’ve Left Off.
We began this book in a moment of loss. A city fallen. A temple plundered. A teenager standing in the court of the world's most powerful empire, being given a new name by an official who assumed the old one no longer mattered.
We end it with stars.
There is a bell in Philadelphia that has not rung since 1846. It sits behind glass, cracked and silent, visited by millions who come not to hear it but to read it. Encircling its crown is an inscription from the book of Leviticus: Proclaim liberty throughout all the land unto all the inhabitants thereof.
The roots of American liberty run deeper, and stranger, and more theological than the standard account allows. They pass through a burned book, a Scottish castle prison, a seventy-foot drop on a rope of knotted blankets, and a Princeton classroom. And at every point along the way, they are watered not by abstract Enlightenment philosophy but by a conviction older and tougher than that, the conviction that there is a law above the law of kings, and that its Author is the God of Scripture.
That is the story worth telling on the republic's 250th anniversary.
Daniel is finishing his course here in chapter 12: an unexpected life, begun in exile as a teenager, sustained through three empires, altered by visions he could not fully contain, and marked throughout by the faithfulness of a God who never once let go of him. One of the most remarkable figures in human history. And at the end of it all, he leaves us three gifts to open.
The powers invented the cross. The powers perfected the cross. The powers wielded the cross against the Lord of glory. And in that single act — the most catastrophic miscalculation in the history of the universe — they triggered the instrument of their own destruction. They did not know. The wisdom of God was hidden from them. They played the role appointed for them before the ages: the unwitting executioners of the sacrifice that would end their power forever.
As exile people, we not only live in contested territory — we are contested territory. Our very persons are a battleground. As we live and serve in beautiful downtown Babylon, we should not be surprised by the presence of resistance. The spiritual battle for nations, peoples, and persons is what this final section of Daniel is about.
Daniel could not have imagined any of this when he fell to his knees with Jeremiah's scroll in his hands. He prayed for the seventy years of exile to end. God answered with the Jubilee of Jubilees, with the end of sin itself, with a Temple that death cannot destroy and a righteousness that will never wear out.
Every Alexander, every Caesar, every figure the world calls great occupies the same position in the Bible’s cosmology: a creature appointed for a moment, serving a purpose they may not understand, and, even when they are fueled by their own selfish and cruel ambition, making way for the next creature in a sequence moving toward the kingdom that shall not be destroyed.
The beasts are not quickly displaced; for a long period, they roar and rumble across history. Centuries. Violence, murder, tyranny, displacement, immense suffering, and loss follow in the wake of their trampling, iron step, and grinding teeth. But the vision moves from earth to heaven, from the sea to the throne room, and what Daniel sees there changes everything.
Every one of us has signed up for an overnight stay in the lion’s den. Not as a possibility. As a certainty. Peter wrote to us as exile people, reminding us that we live in the Lion’s Den - it is the shape of faithful exile in a broken world is the shape of Daniel’s life — just as Daniel’s life had a den in it. The question is not whether the stone will roll shut. The question is whether we will have built the life that can survive the night. “Be sober-minded, be watchful. Your adversary the devil prowls about like a roaring lion, seeking someone to devour. Resist him, firm in your faith…” (1 Peter 5:8ff).
Daniel 5 opens with Belshazzar throwing a party for a thousand lords. Outside the walls, the Medo-Persian army of Darius the Mede is besieging the city. But Belshazzar isn’t worried. Babylon’s walls are eighty-seven feet thick. The Euphrates River runs through the city’s interior. The grain stores can sustain the population for years. By every military calculation available to him, he is safe. His confidence isn’t irrational. It is simply wrong about what is coming — and from which direction.
The prophets understand this with agonizing clarity. Isaiah's great comfort chapters (40–55) frame the coming redemption from Babylon as a second Exodus, surpassing even the first. The geography carries the weight: to be delivered from Babylon is not just to go home. It is to be restored to the whole trajectory that Babylon represents the negation of.
This is also, of course, why Daniel is the book it is. Daniel and his friends are not merely civil servants in a foreign administration. They are the covenant people stranded in the epicenter of everything God has been working against since Genesis 11 — and they must bear witness there, in the city of man, to the God who rules all cities and all kings.
Here are some recommended resources for further study, prepared for those who’ve just studied a brief series on eschatology with me. This is also a good place to pick up helpful material in preparation for our upcoming sermon series on Revelation, starting in mid-August.
Before we consider what Revelation is, we need to reckon honestly with why it so often defeats us. Most Christians who pick up this book find themselves lost within a few chapters — bewildered by the imagery, uncertain about the timeline, and vulnerable to whichever confident interpreter they encounter first. Three deficits account for most of the confusion.
“But if not…” says that if God, for reasons of his own that we cannot see and may never understand, chooses not to intervene in the way we hope, we still won’t bow. The obedience is not contingent on the outcome. The loyalty is not conditional on the rescue. We serve him because he is God, not because he has agreed in advance to protect us from all consequences.
This little stone — humble, subversive, seemingly insignificant — strikes the statue at its feet. Not at the head. Not where it looks strong. At the feet. And the whole thing collapses. Gold, silver, bronze, iron, clay — "they became like the chaff of the summer threshing floors; and the wind carried them away, so that not a trace of them could be found." (2:35) And then the stone — the stone! — grows. It becomes a mountain. And the mountain fills the whole earth.
The Book of Revelation, the great companion volume to Daniel, knows this moment. In chapter 11, after the seventh angel sounds his trumpet, the elders in heaven fall on their faces and sing: "The kingdom of the world has become the kingdom of our Lord and of his Christ, and he shall reign forever and ever." That is Daniel 2 reaching its conclusion. The stone has become the mountain. The mountain has filled the earth.
If we are exiles, resident aliens here while being citizens of the heavenly city, then the most practical book in the Old Testament for this moment is the one we open in this series: the Book of Daniel.
These are the two pillars no Christian can live without: God is sovereign over where we are. God is faithful to meet us with his grace. The exile is within his purpose. The calling comes with provision. The same God who placed Daniel in Babylon gave Daniel everything he needed to serve there for the rest of his life.
Daniel was an exile. He did not comply. But neither did he withdraw, rage, or despair. He received grace to maintain his faith and grace to love and serve even those who hated him. He learned Babylon's language. He served in the government. He contributed to its flourishing. And he prayed three times a day, with his windows open toward home. That posture — present in Babylon without becoming Babylonian, engaged without being absorbed, hopeful without being naive — is the posture this series is about.
At least 1.5 million Jews perished in Auschwitz and its neighboring camp, Birkenau. The evidence indicates many more than that died. Hundreds of thousands of others were murdered under the terrifying efficiency of these Nazi death and labor camps. This is the brief story of one of those others, and the difference that one life offered up in love made in the life of another.
The Church has never been a gathering of the already-perfected. It has always been, and will always be on this side of eternity, a hospital for sinners, a ragged collection of people who sometimes betray and sometimes deny, who struggle with pride and cowardice and all manner of ordinary human failure. If you have spent any time in a church — including this one — you already know this. It is not news.
But here is what is news. Here is what cuts against the darkness of that room like a lamp in a window.
Jesus, knowing all of it — the betrayal already in motion, the denial already forming in Peter's chest, the scattering that was only hours away — Jesus gave them the mandate anyway. Love one another as I have loved you.
Passover week has just begun. A stranger is riding into Jerusalem, and exuberant crowds are hailing his arrival. They spread their cloaks on the road and cried out a name that ought to stop us cold: "Hosanna to the Son of David!"
That name. How?
How can the Messiah bear the name of an adulterer and a murderer?
How do we sing his Psalms?
How do we treasure his prophetic words?
How does any of this hold together?
“And that is what some of you were…” (1 Corinthians 6:11)
The Corinthians had messy lives. Sexual sin, broken relationships, distorted desires. Paul names it. He doesn’t pretend it’s fine.
But then comes one of the most important words in the Bible: “But.”
“But you were washed. You were sanctified. You were justified in the name of the Lord Jesus Christ and by the Spirit of our God.”
That one word changes everything.
The gospel doesn’t ignore the past. It interrupts it. It breaks into the present with a future we didn’t earn and don’t deserve.
Since my middle name is Patrick and my last name is Cassidy (or “O’Cassidy” as it once was styled) - a name from the misty peatlands, drumlins, streams, and forests of Co. Fermanagh - I hope you’ll forgive me this St. Patrick’s Day for commending to you a book with the title “How the Irish Saved Civilization”, by Thomas Cahill… and a morning prayer to accompany your green fashions today.
The sixth commandment is not merely about avoiding violence. It calls God’s people to protect and cultivate life. A murderous philosophy motivated the Nazi regime, but it has its contemporary co-belligerent in the work of Princeton ethicist Peter Singer. His radically anti-Christian view that belittles the idea of humans as God’s image bearers, a view he refers to as “speciesism”, leads him to conclude that the newly born infant is not fully human - only potentially so, that a human infant is no different than a pig and must prove to the parents that he’s worthy of life. This massive deception is creeping into mainstream thinking and affects the Church as well. Against it, we affirm a Biblical anthropology and choose life.
Paideia means more than discipline. It refers to whole-life formation. The shaping of a person’s values, loves, habits, instincts, and imagination. It’s the deep work of enculturation.
Paul takes a word that once aimed at forming citizens for the empire and redirects it toward forming heirs of the kingdom, the citizens of heaven on earth.
The Ten Commandments are not thin rules. They are seeds. Each contains an entire moral world inside it.
Just as the command not to bear false witness includes gossip, slander, flattery, and manipulation, so the command to honor father and mother stretches far beyond childhood obedience. The bare command does not exhaust its meaning.
It will take time to unpack even the surface issues. There are two main angles here.
First, honor and respect. That is the view from the child’s position, or more broadly, from anyone under authority.
Second, “raising” up. Paul uses the word paideia in Ephesians 6. It means discipline, training, and formation. That is the view from the parent or authority position.
Honor and formation. These two realities are central to how the kingdom of God becomes visible in the world.
“I dwell in the high and holy place, and also with him who is of a contrite and lowly spirit.”
The word contrite means crushed. Broken. Not theatrically ashamed. Not self-hating. But pierced. Awakened. Humbled.
There is a world of difference between shame and contrition.
Shame says: I am worthless, so I hide. Shame looks for fig leaves and weaves a new runway-worthy clothing line.
Contrition says: I am sinful, so I come. No more hiding. No more pretending. No more minimizing. I can’t save myself; I must have a Savior.
Ash Wednesday is not about groveling before a reluctant God. It is about coming honestly before a gracious one.
Notice the promise: He dwells with the contrite.
Not tolerates. Not endures. Dwells.
The high and holy God makes His home with the humble.
Some personal news and a word about some upcoming preaching and teaching, along with an invitation to check out the Alliance for Mission and Renewal in the PCA.
Beyond the Blog
Indispensable: The Basics of Christian Belief
The Christian faith involves many different elements: a breathtaking sacrifice, an unshakable hope, a daily fight—and more. Each is critical to our salvation and essential to the shape and purpose of our daily lives. Yet some have become so familiar to us that we miss their importance… and others may not feel familiar at all. Indispensable: The Basis of Christian Belief is available on Amazon.
The War We Can’t See: Satan, Demons, and Spiritual Warfare
Every day, Christians face an invisible war—one that impacts our thoughts, relationships, and faith. Yet many believers feel skeptical, confused, or even fearful when it comes to spiritual warfare.
In The War We Can't See, Pastor David Cassidy cuts through misconceptions to reveal what Scripture truly teaches about our spiritual enemy. With biblical clarity and pastoral wisdom, he addresses the most asked questions about Satan and demons:
Is Satan really active in our world today?
How do demons operate, and what power do they have?
How can I resist my spiritual enemy?
What do I do if I feel spiritually oppressed?
Discover how Christ's victory at the cross gives you everything you need to stand firm, resist temptation, and walk confidently in the hope of his return.