THE COMMANDMENT THAT IS BOTH OLD AND NEW (1 John 2:7–8)

Truth in the Christian life never grows old, yet always feel newly discovered. John speaks of one such truth with holy simplicity, as though it has walked with the church from its birth and yet still carries the freshness of morning dew. “Brethren, I write no new commandment unto you, but an old commandment which you had from the beginning.” It is as if he reaches back into eternity and forward into the present, and finds the same truth standing unchanged between them.

The commandment is not new in origin, for it was breathed into the law of God and written into the heart of the Scriptures from the beginning. Love has never been an innovation of the gospel age; it has always been the heartbeat of divine holiness. Yet though it is old, it is never exhausted. It never becomes stale, never loses its authority, never fades in relevance.

And yet John immediately adds a startling paradox: “Again, a new commandment I write unto you.” Old, and yet new. Ancient, and yet fresh. Eternal, and yet ever-present. The gospel does not discard what came before; it fulfills it, deepens it, and fills it with living power through Christ.

This is the mystery of Christian love: it is not new because it was recently invented, but because it has been revealed in a new way in the Son of God. What was once written in stone is now written in flesh. What was once commanded from Sinai is now embodied at Calvary. The law said, “Love your neighbor”; Christ says, “As I have loved you.”

And here is where the commandment takes on its radiant glory: “which thing is true in him and in you.” First in Him—Christ is the living definition of love. Not abstract love, but crucified love. Not distant love, but incarnate love. Not theoretical love, but bleeding love. Then in you—because what is true in Him begins to take shape in those who belong to Him.

For the darkness is passing away, and the true light now shines. John does not say the darkness has already fully disappeared, but that it is passing away. It is a fading reality, already judged, already weakened, already under sentence. And in contrast, the light is not merely coming—it now shines.

There is triumph in that phrase. The Christian life is not lived in equal tension between light and darkness as though both were eternal forces. No, darkness is temporary; light is eternal. Darkness is declining; light is advancing. Darkness is losing its grip; light is establishing its reign.

And so the commandment to love is not burdensome—it is the expression of a new reality already at work within the believer. To love is to walk in the light that is already shining. To hate is to linger in a darkness that is already passing away.

But how often believers forget this. They treat love as obligation rather than nature, as duty rather than life. Yet John will not allow such distortion. Love is not merely what we are told to do; it is what we have become in Christ.

And still, this love does not originate in human effort. It flows from the One who first loved us. The commandment is old because God is eternal; it is new because Christ has revealed it in fullness. What was once partially understood is now fully displayed in the Son.

There is power in this truth. The Christian is not asked to generate love from within himself, but to walk in the light of what has already been given. The commandment does not crush the believer—it reveals what grace has already begun to form.

So the soul is left standing between two realities: a passing darkness and a shining light; an old commandment and a new fulfillment; a law written in words and a law embodied in Christ.

And the question becomes simple, yet searching: Will we walk in what is passing away, or in what is shining?

For the darkness is passing.

But the light is already shining.

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O Lord, write Your love upon our hearts as You revealed it in Your Son. Deliver us from walking in what is fading, and bring us fully into the light that is already shining in Christ. Teach us to love not in word only, but in the life You have given us. Amen.

BDD