Your prayer from Psalm 69 is a cry which God Himself has taught you to pray, and He who taught it will assuredly answer it. To be afflicted and in pain is the portion of many of the Lord's people, but to be set safely on high by His salvation is the portion of all who trust Him.
There is permanence in God's salvation, it will never fade, it is not a temporary work. The truth of that salvation proves itself upon the mind and heart because it meets a real need. It assumes a real Fall, for you who have really transgressed are the very men and women for whom there is truth in Christ's salvation. It provides a real Atonement, not a name or a notion, but the precious blood of Christ shed for sinners, and where that is believed there comes a real pardon, so that you are really forgiven. This is God's salvation from top to bottom, God's in the beginning, God's in the carrying on and God's in the concluding, and wherever we see Jesus we see God's salvation itself. May your eyes more and more spiritually light upon Christ, for to see Him is to see salvation.
This is your comfort in affliction, God's own Word. Why should we look anywhere else for consolation but to God's Word. It is outwardly a sure promise and inwardly a quickening power. The Psalmist said, Your Word has quickened me, and that quickening is your solace. God's Word has in past days made you alive from the dead, and it will keep you alive now. Fly to it with speed in every time of trouble and be familiar with it, for it is established and can never change. If you have delighted in God's law you shall not perish in affliction, for He who has been sufficient for you until now will befriend you even to the end.
Do not forget to see God's hand in this trial. It is a rough knife that has pruned you, but it is the Gardener who holds it, and He uses affliction for your good. Like David, you may say, It may be that the Lord will look upon my affliction. He does look upon it with pity, and He will repay with good. And though your affliction feels heavy, the apostle by the Spirit calls it light and momentary when contrasted with the eternal weight of glory which it is working for you. No affliction weighs more than a gnat resting upon an elephant when the Lord's upholding grace is sweetly manifested to the soul in times of pain.
So pour out your story before God rather than before man. Tell Him your struggles and heart aches, for He knows you intimately. Ask Him to set you safely on high in Christ, to give you His mercy and goodness to overcome all you face, and to make His Word your delight and quickening again.
We join our prayer with yours. O Lord God, look upon this afflicted one. Let Your salvation in Christ Jesus set Your servant safely on high. Quicken by Your Word, pardon by Your atonement, comfort by Your promises, and turn this light affliction into a weight of glory to Your praise. Preserve and deliver for Jesus sake. Amen.