Colossians 3:10

“And have put on the new man, which is renewed in knowledge after the image of him that created him;”

The Christian life is sometimes mistaken for a life of mere restraint. We imagine it chiefly as the effort to stop doing what is wrong, to hold back the harsher word, to resist the obvious temptation, to keep outward conduct within the lines of obedience. There is truth in this, of course. Grace does not make holiness unnecessary. Yet Paul’s words in Colossians take us deeper than behaviour alone. The believer has “put on the new man,” and this new life is “renewed in knowledge after the image of him that created him.”

This is not simply moral improvement. It is inward renewal.

God does not save a person and leave the mind untouched. He does not merely place a new label upon an unchanged soul. In Christ, the whole person is brought under the gracious work of restoration. Our desires are addressed, our wills are strengthened, our affections are reordered, and our understanding is renewed. We begin, often slowly and sometimes painfully, to see differently.

That matters because so much of our disorder begins with false seeing. We misjudge God, imagining Him distant when He is faithful, harsh when He is holy, indifferent when He is patient. We misjudge ourselves, either excusing sin too easily or carrying shame as though Christ had not borne it. We misjudge others, reducing them to their failures, usefulness, opinions, or offence against us. Sin darkens knowledge. Grace renews it.

Our age is full of information and often starved of wisdom. We can gather opinions endlessly, absorb news constantly, and live surrounded by voices, yet still lack a rightly ordered mind before God. The knowledge of which this verse speaks is deeper. It is knowledge shaped by the Creator Himself. It restores us towards the image for which we were made.

To be renewed in knowledge is to learn reality again under God’s light. It is to discover that the world is not finally governed by appetite, fear, ambition, or public approval, but by the Lord who made all things and holds all things. It is to learn that our identity is not created by self-definition, cultural pressure, past failure, or the judgement of others. We are not invited to invent ourselves from nothing. We are called to receive life from the One who created us and now renews us in Christ.

This renewal is ongoing. Paul’s language points not only to something received, but to something being continually worked in us. The new man is renewed. Day by day, the Lord teaches His people to put away the old patterns and walk in the truth. Sometimes this happens through Scripture read quietly when no one sees. Sometimes through conviction after a careless word. Sometimes through suffering that exposes what we have trusted. Sometimes through the faithful counsel of another believer. Often it happens in ordinary obedience, when we choose truth over impulse and humility over self-protection.

This is why Christian growth cannot be reduced to external discipline, though discipline has its place. The Lord is not merely training us to behave better under pressure. He is renewing the inner life from which our behaviour flows. As our knowledge is renewed, our responses change. Conflict is no longer only a contest to win. Temptation is no longer only a private struggle of willpower. Responsibility is no longer merely a burden to survive. We begin to see these things before God, and seeing them differently, we learn to walk differently.

There is great comfort here. We are not left to recreate ourselves. The burden of becoming new does not rest upon our own imagination or effort. The Creator is also the Renewer. The One whose image sin distorted is the One who restores His people through Christ. He knows what He is making. He knows what must be healed, corrected, strengthened, and brought into light.

The Christian, then, need not be ruled by the old mind, the old labels, the old fears, or the old habits. We have put on the new man. We are being renewed in knowledge. And this renewal has a direction: the image of Him who created us.