His Unfailing Strength
When I Can’t, God Can
There is a strange kind of math in the Christian life — math that does not work anywhere else, and yet works every time here.
The world teaches us that strength comes from strength. That the way to get stronger is to be stronger. That weakness is something to overcome, hide, or push through on the way to becoming capable again. But Paul, writing from a place of real and ongoing weakness — something he begged God three times to take away — heard something different from God. Not I will remove your weakness. But: My grace is sufficient for you, for my power is made perfect in weakness.
That is the strange math. God’s power is not despite our weakness. It is not in spite of it. It is made perfect in it. Our weakness is not an obstacle to His strength — it is the very place where His strength becomes visible.
Older adults understand this in a way few others do. There comes a point in life where the body simply cannot do what it used to. Stairs that were once nothing now require care. A jar lid that once opened easily now needs help. An afternoon that once held hours of energy now asks for rest by midday. This is not failure. This is the natural unfolding of a life well-lived. But it can feel, at times, like loss — like watching capability slip away piece by piece.
And yet, in the middle of that very real loss, something else can happen. Something quiet. Something that does not show up on any medical chart.
Imagine an older woman sitting in her favorite chair, her hands resting in her lap — hands that used to do so much, and now sometimes shake when she tries to thread a needle or open a jar. A friend visits and, with gentle concern, asks how she manages — how she stays so hopeful when so much has become harder.
She is quiet for a moment, looking down at her hands. Then she looks up, and there is a small, steady light in her eyes as she says:
Five words. But inside those five words is a lifetime of learning — the slow, sometimes painful, ultimately freeing discovery that her own strength was never the real foundation. It was always His. She simply could not see it as clearly when her own strength was still doing most of the work.
His Nearness is His Unfailing Strength. God’s strength is not loud or forceful. It does not announce itself with fanfare. It is steady, gentle, and perfectly timed — filling the gaps we cannot fill, carrying the burdens we cannot lift, sustaining us in the moments when we feel completely worn down. And the doorway through which that strength enters is not our capability. It is our weakness.
This does not mean weakness feels good. It does not mean limitation is something to celebrate for its own sake. But it does mean that every limitation, every “I can’t,” every moment of needing help — these are not signs that God has stepped back. They are invitations for Him to step forward. They are the very places where His strength, not yours, gets to be made perfect.
If today you are feeling the weight of what you cannot do — the things your body no longer allows, the tasks that now require help, the energy that runs out sooner than it used to — do not let that feeling become shame. Let it become an offering. Lord, I can’t. But You can. That is not weakness talking. That is faith — the kind of faith that only comes from people who have lived long enough to stop pretending they were ever strong enough on their own, and have discovered, in that very honesty, the strength of God Himself.
He is strong where you are weak. He always has been. And His strength, unlike yours, never runs out.
- The next time you find yourself thinking I can’t do this anymore, try finishing the sentence: “…but God can.” Say it slowly. Let it be a prayer, not a complaint. It is one of the most honest and most powerful prayers a person can pray.
- For the Next Generation: The world says weakness is something to hide. The Bible says weakness is where God’s power shows up most clearly. Ask an older person in your life: “When did you feel weakest — and how did God meet you there?” Their answer may completely change how you think about your own limitations.
Sit quietly. Bring to mind one thing today that feels too hard — something your strength cannot reach. Hold it gently for a moment, without trying to fix it.
Now say, quietly:
“Lord, I can’t. But You can.”
Let that be enough. You do not have to solve it. You only have to hand it to the One whose strength has never once run dry.
quietly, steadily, completely.
May His power fill every place
where your own strength runs short.
May His presence give you courage
for what feels too hard.
And may you walk through this day
with the deep, settled peace
of someone who has learned
the truest math there is:
that when we cannot,
He always can.



