The Christian life can seem difficult at first, but Christ does more than command holiness—He heals the heart. Reflecting on St. John Chrysostom’s homily on Matthew 5, this sermon shows how the Holy Spirit gradually reshapes our desires so that virtue becomes joyful and love becomes natural. Christ fulfills the Law not only in Himself but also, by His grace, in us. Enjoy the show!
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The Sunday of the Fourth Ecumenical Council
Matthew 5:14-19; Titus 3:8-15
In today’s Gospel, our Lord says something that must have surprised His listeners.
“Do not think that I have come to abolish the Law or the Prophets. I have not come to abolish them, but to fulfill them.”
Now, at first glance, that almost seems unnecessary. Nobody listening to the Beatitudes would naturally conclude that Jesus was attacking Moses. After all, He had been teaching humility, mercy, purity of heart, peacemaking, and love. Nothing about that sounds like rebellion against God’s Law.
So why does He stop to say this?
Saint John Chrysostom says it is because Jesus knows what He is about to do.
He’s about to say things that sound startling.
“You have heard it said, ‘Do not murder.’ But I say to you, do not even harbor hatred.”
“You have heard it said, ‘Do not commit adultery.’ But I say to you, do not even cultivate lust.”
He isn’t lowering the standard.
He’s raising it.
The people might naturally think, “Wait a minute. Is He replacing Moses? Is He setting aside everything God gave us?”
So before He says another word, He reassures them.
“I have not come to abolish. I have come to fulfill.”
That word fulfill is important.
Christ doesn’t erase the Law.
He reveals and connects us with what it was always pointing toward.
The commandment against murder was never just about keeping blood off your hands. It was always meant to teach us to love our neighbor. Christ simply carries it all the way into the heart.
The commandment against adultery was never merely about outward behavior. It was always about purity of heart and faithfulness. Christ carries it into our thoughts, our desires, our imagination.
Every commandment moves in the same direction—from external obedience toward inward transformation.
That’s what fulfillment means.
Saint John Chrysostom points out something else that is beautiful.
Christ fulfills the Law in three ways.
First, He fulfills it Himself.
He alone keeps it perfectly. He can honestly ask, “Which one of you convicts Me of sin?” Every commandment finds its perfect expression in Him.
Second, He fulfills the prophecies.
Everything the prophets had spoken—His birth, His ministry, His suffering, His kingdom—comes true in Him.
But then Chrysostom gives a third fulfillment, and I think this is the one we often forget.
Christ fulfills the Law in us. And that was necessary, because the Law could teach righteousness, but it could not communicate the life by which righteousness is fulfilled.
The Law could show us the good.
It could expose our failures.
But it could not heal the heart.
Christ does what the Law by itself could never do. Through His death, resurrection, and the gift of the Holy Spirit, He actually begins making us into the kind of people the Law always envisioned.
Not merely people who avoid murder…
but people who love.
Not merely people who avoid adultery…
but people who become pure.
Not merely people who tell the truth…
but people whose whole lives become truthful.
That’s why Christianity isn’t about lowering expectations.
Neither is it about adding more rules.
It’s about becoming a new creation.
This is why Orthodoxy speaks so much about theosis. God’s purpose is not simply to forgive sinners, but to make them partakers of the divine life.God is not merely interested in better behavior.
He is forming saints.
The commandments are not arbitrary rules meant to restrict life.
They are a portrait of fully human life—life as it looks when it is filled with the life of God.
So when Christ says, “You have heard… but I say to you…” He is not correcting Moses.
He is revealing the deepest meaning Moses had been pointing toward all along.
And there is one more thing that Saint John Chrysostom says that I find deeply encouraging.
He reminds us that at first the Christian life can seem difficult. Forgiveness feels hard. Patience feels unnatural. Humility feels costly. We imagine that holiness means spending our whole lives forcing ourselves to do things we don’t really want to do.
But that’s only true at the beginning.
As Christ heals the heart, He also heals our desires.
The things that once seemed impossible slowly become natural. The sins that once looked attractive begin to lose their appeal. The virtues that once felt burdensome become a source of joy.
That is what spiritual formation is.
God is not simply teaching us to behave differently.
He is teaching us to love differently.
That is why we return to the Church week after week.
Why we pray the same prayers.
Why we fast.
Why we confess.
Why we receive the Holy Mysteries.
These are not religious chores. They are the ordinary means by which the Holy Spirit reshapes the heart.
Little by little, almost without noticing it, Christ is teaching us to desire what He desires and to love what He loves. The [lost] likeness is gradually restored.
But that encouragement also comes with a warning:
It’s possible to keep the rules while missing their purpose.
The Pharisees became experts at outward observance while neglecting mercy, humility, forgiveness, and love.
That temptation hasn’t disappeared.
It’s possible to be outwardly Orthodox—to fast, attend services, know the prayers, defend the faith—and still carry resentment, pride, envy, or contempt in the heart.
Christ loves us too much to let us settle for appearances.
He always leads us deeper.
From actions…
to desires.
From behavior…
to character.
From keeping commandments…
to becoming people who naturally love what is good.
So let us not become discouraged if the road sometimes seems steep. Let us simply keep taking the next faithful step. As Saint Paul says, “Forgetting what lies behind and straining forward to what lies ahead, let us press on toward the goal for the prize of the upward call of God in Christ Jesus.”
That is the Christian life—not perfection overnight, but faithful formation day after day, until the commandments are no longer something imposed upon us from the outside, but fulfilled within us by Christ Himself. That is what He came to do—not to abolish the Law, but to fulfill it, in Himself, and by His grace, in us.
In the Name of the Father, and of the Son, and of the Holy Spirit. Amen.
