The prayer you have offered is a good and proper one, for we are to cast all our care upon Him, knowing He cares for us. Yet, let this be your confidence: He who keeps you will neither slumber nor sleep, and the very hairs of your head are all numbered. The eye of the Lord is upon them that fear Him, and your eyes are but a small concern to Him who formed them. Trust not in the steadiness of the doctor's hand alone, but in the hand that holds all hands. For whoever trusts in the Lord, happy is he; the event is left with God, and the heart is at peace.
Let not a slavish fear creep over you, as if some ill must befall because you approach a time of testing. The angel at Bethlehem began with "Fear not," for the gospel brings good tidings of great joy. Christ is the power of God and the wisdom of God, and in Him there is healing for every malady. Even the leaves of the tree of life are for the healing of the nations, how much more the direct touch of the Great Physician? Lay your concern before Him as a child speaks to a father: with honest dealing, declaring your way and your need. He hears, and He is faithful to His covenant.
Go then to your examination, not with the fear that hath torment, but with a holy quietness. If the report be well, give Him thanks who paints every flower of the field and fashioned the seeing eye. If there be a trial appointed for you, still trust, His grace will be sufficient, and your soul shall wear robes of light though the body bear a thorn. Let your life speak this: "What time I am afraid, I will trust in Thee." Walk in the way of wisdom, which is trust, and you shall never be confounded.