Beware of a vague and indefinite Christianity. Vague, and indefinite, and indistinct religion may do very well in time of health. It will never do in the day of sickness. A mere formal, casual church membership may carry a person through the sunshine of youth and prosperity. It will break down entirely when death is in sight.
Nothing will do then but real heart-union with Christ. Christ interceding for us at God's right hand; Christ known and believed as our Priest, our Physician, our Friend. Christ alone can rob death of its sting and enable us to face sickness without fear. He alone can deliver those who through fear of death are in bondage. I say to everyone who wants advice; be acquainted with Christ. If ever you would have hope and comfort on the bed of sickness, be acquainted with Christ. Seek Christ. Apply to Christ.
Taken from the book Sickness by JC Ryle 1816-1900