"If we knew no sin, we should know no sickness. Sinners are fools. They hurt their bodily health by intemperance, and endanger their lives by indulging their appetites. This their way is their folly. The weakness of the body is the effect of sickness. It is by the power and mercy of God that we are recovered from sickness, and
it is our duty to be thankful. All Christ's miraculous cures were emblems of his healing diseases of the soul. It is also to be applied to the spiritual cures which the Spirit of grace works.
He sends his word, and heals souls; convinces, converts them, makes them holy, and all by the word. Even in common cases of recovery from sickness, God in his providence speaks, and it is done; by his word and Spirit the soul is restored to health and holiness."
Commentary by Matthew Henry on Psalm 107:17-22
It is so easy to forget to give Christ the credit for the sickness that I have seen around me and have experienced myself. During hard times of my life I have prayed harder than ever for loved ones to be healed. Once my prayers have been answered (yes or no) I go on with life without recognizing that it is my duty to be thankful for what the Lord has done for me.
I need to be reminded over and over that the Lord has blessed me. "It is by the power and mercy of God that we recover from sickness."