“The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel.”
— Mark 1:15
In Mark’s Gospel, we are launched immediately into the teaching ministry of Jesus. And what Mark records here is significant — this is the very first public teaching of Jesus, and it is entirely focused on the gospel.
The Greatest Evangelist
What is remarkable about this opening declaration is that Jesus was preaching about Himself. He is the greatest evangelist who ever lived — not only because of how He preached, but because the subject of His preaching was His own person and work.
This stands in sharp contrast to much of what passes for preaching today — messages centred on man, on health, wealth, and prosperity, on felt needs and self-improvement. Jesus went straight to the heart of what the Word of God is always meant to proclaim. Paul captured the same spirit when he wrote to the Corinthians:
For I determined to know nothing among you except Jesus Christ, and Him crucified.
— 1 Corinthians 2:2
And we see the same emphasis in Paul’s instructions to Timothy to preach the Word, and to Titus to hold firmly to sound doctrine. All of it points back to the centrality of the gospel.
The Time Is Fulfilled
The first thing Jesus declares is that the time is fulfilled. This speaks of urgency — of a moment long anticipated that has finally arrived. Across centuries, messages and prophecies had been building, all pointing toward a specific time when everything required for the gospel would be in place. And now that time had come.
Paul describes this same moment to the Galatians:
But when the fullness of the time came, God sent forth His Son, born of a woman, born under the Law, so that He might redeem those who were under the Law.
— Galatians 4:4
This was not accidental or unplanned — it was preordained and prepared for before the foundation of the world. And because this time has come, the gospel carries an inherent urgency. It is not a message to be considered at leisure and acted on eventually. Paul writes to the Corinthians:
Behold, now is the acceptable time; behold, now is the day of salvation.
— 2 Corinthians 6:2
When we preach the gospel, this urgency must be felt. This is a message that cannot wait until tomorrow.
The Kingdom of God Is at Hand
The second declaration Jesus makes is that the kingdom of God is at hand. When He speaks of the kingdom of God, He is speaking of the absolute sovereignty and dominion God holds over all creation. It is a declaration of Lordship and authority.
Paul writes to the Philippians that every knee will bow and every tongue confess that Jesus Christ is Lord, to the glory of God the Father. And in Matthew 28, Jesus grounds the Great Commission in precisely this authority:
All authority has been given to Me in heaven and on earth. Go therefore and make disciples of all the nations.
— Matthew 28:18-19
Even the Lord’s Prayer opens with this recognition — your kingdom come, your will be done. To proclaim that the kingdom of God is at hand is to announce that the one who has supreme authority over all things is the Lord Himself. This authority is what gives the gospel its weight. The good news does not merely invite — it summons, because it comes from the King.
Repent and Believe
Finally, Jesus calls His hearers to two inseparable responses — repentance and faith.
Repentance is a change of mind. It is turning away from faulty views of God, of man, and of reality — views shaped by a world that has suppressed the truth — and embracing the truth as God has revealed it. The world has taught us false things about who we are, who God is, and how we relate to Him. Repentance is the deliberate abandonment of those distortions.
Paul captures this in Romans 12:2 — do not be conformed to this world, but be transformed by the renewing of your mind. And in Ephesians 4, he calls believers to put off the old self, be renewed in the spirit of their minds, and put on the new self. The renewed mind is not incidental to the gospel — it is central to it.
Believing is the other side of the same coin. Repentance turns us away from false things; faith turns us toward Christ. To believe the gospel is to fix our eyes on Jesus Christ — the author and finisher of our faith — and to trust fully in His finished work. It is to embrace the truth that Jesus, God incarnate, came in the flesh, lived a perfect life, died a sinner’s death, was buried, and was raised on the third day for our justification. These are the truths that must be believed and embraced.
The Sufficient Gospel
May we be a people who not only submits to the gospel of Christ ourselves, but who carries this good news to others — trusting that it is entirely sufficient for the Holy Spirit to convert hearts and transfer people from the kingdom of darkness into the kingdom of God.
Amen.
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