Charles H. Spurgeon on Psalms 103:5

Satisfieth thy mouth. Kimchi understands the phrase as expressing David's recovery from sickness. In sickness the soul abhorreth bread, and even dainty meat, Job 33:20. The physician, too, limits the diet of the patient, and prescribes things which are nauseous to the palate. The commentator, therefore, supposes that David here describes the blessing of health, by his mouth being filled with good things. Editorial Note to Calvin in loc.