Sure, in the end our spiritual growth is a miracle. But I’d suggest that God has placed some of the responsibility for sanctification on us. Sanctification is a synergistic work between the Spirit of God and the believer. So, how do we build spiritual muscle?

What’s the most important question in the world?

I think my fellow Christians would agree with me that it’s the question of where you’re going to spend eternity. If there’s life after death, and if that life is eternal, and if there are different possibilities for the nature of that life, then it’s hard to imagine any question more important than that one.

Life and death. Heaven and hell. It doesn’t get any more consequential than that.

As the Philippian jailer put it so clearly and succinctly all those years ago, “What must I do to be saved?” (Ac 16.30).

And interestingly, according to the Scripture, the answer is remarkably simple and direct. As Paul replied to the jailer, “Believe in the Lord Jesus, and you will be saved” (Ac 16.31).

God has been kind to make the answer to such a consequential question so simple.

Over the years, quite a few Christians have behaved as though The Most Important Question is the only important question.

I said the prayer. I got my ticket out of hell. It’s all good.

Now. What do I want to be when I grow up? Whom do I want to marry? Where do I want to live?

But the Scripture doesn’t see conversion as merely a ticket to ride. Conversion is a commencement—it’s the start of something really, really big, a whole lot of which takes place before you get anywhere near heaven.

I’ve written on some of that before.

Conversion begins a lifetime of being changed, through the work of the Spirit of God, to be more and more like Christ—to the degree that we can be like someone who is God as well as man. It’s a life in which everything—everything—is being morphed, refreshed, improved, renovated (2Co 3.18).

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