Charles H. Spurgeon on Psalms 106:15

Sent leanness into their soul. God affords us as great means for our increase in these Gospel times as ever he did; he puts us into fat pastures, and well watered, Ps 23:1-6; therefore it is a shame for God's people not to grow, not to "bring forth twins", as So 6:6. They should grow twice as fast, bring forth twice as fast, bring forth twice as many lambs, twice as much wool, twice as much milk, as those that go upon bare commons. All the world may cry shame on such a man that is high fed, and often fed with fat and sweet ordinances, if he be still like Pharaoh's lean kine, as lean and ill favoured as ever he was before. Certainly, fat ordinances and lean souls do not well agree. We are to look upon it as the greatest of judgments to have leanness sent into our souls while we are fed with manna. We look on it as an affliction to have an over lean body; but it's a far sadder condition to have a lean soul. Of the two, it were far better to have a well thriving body and a lean soul: it is a great mercy when both prosper, 3Jo 1:2: "I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth." Oh it is a sweet thing, especially to have a prospering soul, and still upon the growing hand: and God expects it should be so, where he affords good diet, great means of grace; as Da 1:10: "The prince of the eunuchs said unto Daniel, I fear my lord the king, who hath appointed your meat and your drink." If you should look ill, who fare so well, I should be sure to bear the blame; it were so much as my head is worth. So certainly, where God affords precious food for precious souls, if these souls be lean under fat ordinances, either those that are fed, or those that feed them; either the stewards or the household; either minister, or people, or both, are sure to bear the blame. It is but equal and just that such should grow. We do not wonder to see lean sheep upon bare commons, but when we see sheep continue lean in fat pastures, we think their meat is ill bestowed on them; and therefore let us strive to be on the growing hand. Matthew Lawrence.