You do not know what is going on in that leg of yours, and the not-knowing makes the burden heavier. An ache you can name you feel you can bear, but a trouble without a cause, a pain that comes and goes and hides its face from the physician, that wears on the spirit as much as on the flesh. I remember how the Scriptures speak of things unknown: the depths of sin we cannot fathom, the heights of mercy beyond our sounding, and the peculiar griefs that cut their own channel in the soul where no other foot can tread. And yet, my friend, the fact that you do not know is no barrier to Him who knows altogether. The Lord who made that limb, who wrote every sinew and bone in His book before ever you drew breath, is not baffled by a nameless complaint. He sees the root of it; He understands its hidden working; and He is able to reach where no surgeon's hand can go.
I want you to think of the Master as a Shepherd-King who heals. Not a distant sovereign issuing decrees from a cold throne, but a tender Shepherd who walks among His flock and lays His hand upon the lame. Have you ever watched a shepherd with an injured sheep? He does not stand at a distance and shout instructions; he stoops down, runs his fingers through the wool to find the wound, and binds it up himself. So Christ is with you. He does not merely pity you from heaven, He has come near. He has taken our nature, borne our griefs, and carried our sorrows. Those hands that were pierced for you know how to touch a hurting limb and bring relief.
And I would have you remember this: when you cry to Him, you are not shouting into an empty sky. He has given you a promise as plain as any love letter: "Call unto Me, and I will answer you." That is not a verse to be read and admired and then set aside, it is a check to be cashed, a medicine to be taken. You have called. You have brought your left leg to the throne of grace and spoken the name of Jesus over it. Now trust that the answer is already in motion. Sometimes healing comes like the sudden stilling of a storm, and the pain is gone in an instant. At other times it comes like the slow knitting of a bone, day by day, so quietly you almost miss the mercy. But in either case, the Healer is at work. The tree of life that stands in the paradise of God has leaves for the healing of the nations, and not a single one of those leaves will wither or fail. What is a leg to Him who will one day raise your whole body from the dust and glorify it like unto His own?
While you wait, lean hard upon Him. If the pain is sharp at night, let it drive you closer to the One who neither slumbers nor sleeps. If the uncertainty nags at your mind, turn your questions into prayers. "Lord, I do not know what this is, but You do, and I am Yours." A child in the dark does not need to see the whole path; he only needs his father’s hand. You have that hand. Hold it fast. Do not let a rebellious thought take root, for that adds a second wound to the first. Instead, let the pain be a dark velvet setting that makes the jewel of His comfort shine the brighter. He has forgiven your iniquities; He has healed diseases before and He will again. The same Lord who looked down from the cross on men who were killing Him and prayed, "Father, forgive them, for they know not what they do," looks down on your bed or your chair with a compassion that never falters. He knows what He is doing, even when you do not.
So, commit that leg to Him afresh. Say in your heart, "Bless the Lord, O my soul, who heals all your diseases." And then go about your day as one who expects goodness and mercy to follow. If you cannot walk without pain, then sit still and praise Him from the chair. If you can move, then let each step be a quiet prayer of trust. He who fed His people in the wilderness will feed your faith even through this. And one day, whether in this world or in the better one, you will stand whole and strong, and you will see that the unknown thing was never unknown to Him, and that His love was in it all.
O Lord Jesus, beloved Physician, we bring this dear one to You now. You see that left leg; You know every fiber, every nerve, every hidden cause of trouble. We ask You, in Your great name, to touch it and make it whole. Let Your healing power flow through it. If it pleases You, grant a swift recovery and a clear testimony to Your mercy. But meanwhile, sustain Your child. Give peace that passes understanding. Let them know the comfort of being held in Your almighty hands. And may this trial become a place of meeting with You, where faith grows strong and love burns bright. We leave the leg in Your care, and the heart, and the whole of life. Yours is the kingdom, the power, and the glory forever. Amen.