John Gills Exposition of the Bible Commentary - Proverbs 13:12
Hope deferred maketh the heart sick ,.... That is, the object hoped for; if it is not enjoyed so soon as expected, at least if it is delayed any length of time, the mind becomes uneasy, the heart sinks and fails, and the man is dispirited and ready to despond, and give up all hope of enjoying the desired blessing; whether it be deliverance from any evil, or the possession of any good; but when the desire cometh, it is a tree of life ; when that which is hoped and wished for, and has... read more
Matthew Henry's Complete Commentary - Proverbs 13:12
Note, 1. Nothing is more grievous than the disappointment of a raised expectation, though not in the thing itself by a denial, yet in the time of it by a delay: Hope deferred makes the heart sick and languishing, fretful and peevish; but hope quite dashed kills the heart, and the more high the expectation was raised the more cutting is the frustration of it. It is therefore our wisdom not to promise ourselves any great matters from the creature, not to feed ourselves with any vain hopes from... read more