Ploughing the Rock

“Shall horses run upon the rock? Will one plough there with oxen?” — Amos 6:12

Everyone knows the answer. You don’t hitch up the oxen and try to plough a slab of solid rock. The blade just skips and screeches and chips, and at the end of the day you’ve torn up your equipment and planted precisely nothing. It’s hopeless. That’s the picture — and it’s a warning.

Because a human heart can go like that. In the last chapter we saw God patiently ploughing all day. This chapter is the hard truth on the other side: God doesn’t plough forever. There’s a line in the Bible where God says, “My Spirit shall not always strive with man.” The patient work has a limit. And Spurgeon writes this chapter for the person in danger of hitting it.

Here’s how a heart turns to rock — and it’s not usually through some dramatic rebellion. It’s through hearing true things so many times that they stop landing. The first time you hear that you need God, it moves you. The tenth time, less. The hundredth time, you can sit through the whole thing checking out mentally, completely untouched, while the person next to you is in tears at the exact same words. Same seed, same rain — one heart soft, one heart stone. Spurgeon’s sharp line for this is: “The sun that softens wax hardens clay.” The very same warmth. Two opposite results. What melts one person bakes another one solid.

That’s the danger of being around the truth your whole life and never doing anything with it. You can actually get worse from good things — more numb, more resistant, more expert at feeling nothing. Familiarity quietly turns into armour.

Spurgeon has no patience for the idea that the fix is softer preaching — telling people only nice things and never anything that stings. He mocks it: that’s like a fisherman who fishes without hooks so he won’t hurt the fish, or a hunter who fires guns with no bullets out of respect for the birds. It might feel kinder. It saves nobody. Truth that never confronts you can never rescue you.

And he asks a fair question: is it reasonable to expect God to plough bare rock forever, while all over the world there are people desperate for exactly what you keep shrugging off? At some point the ploughman moves to a field that will actually take the seed. The chances don’t last forever. Spurgeon lists the plain ways they end — you drift somewhere the truth is never told you, or the person who kept telling you is gone, or your own life simply runs out. The door doesn’t slam. It just quietly stops being open.

But — and this is why the chapter isn’t only frightening — Spurgeon ends on something genuinely hopeful, and it’s aimed right at the person most scared by all this. If you’ve been reading this thinking, that’s me, my heart’s gone hard, I don’t feel anything anymore — then notice something. Rock doesn’t worry about being rock. The fact that it bothers you at all means you’re not fully stone yet. That ache is the ground still able to be broken. Only God can turn flint into a flowing stream, and the very fact you can feel your own hardness is a sign he’s already at work on it.

One thing to do while the ground is still soft enough to feel it: don’t wait for a bigger feeling than the one you’ve got. If even a small part of you is stirred right now, act on that, today — a real prayer, a real turning toward God. The worst thing you can do with a heart that’s starting to harden is give it one more reason to shrug.