Leanness of Soul

Psalm 106:15 says,

KJV: "He gave them their request, but sent leanness into their souls"
ESV: "he gave them what they asked, but sent a wasting disease among them."
Message: "He gave them exactly what they asked for--but along with it they got an empty heart."

Of this verse, T. Austin-Sparks writes:

The phrase "leanness into their souls" indicates that, firstly, thinness, scantiness, smallness, starvation, tenuity, weakness, and contraction in spiritual stature and measure are quite contrary to a God who is so full, abundant, and beneficent. Such contraction and limitation could never be a testimony to Him.

In the next place, the words indicate that the heavenly, the supernatural, the spiritual, and the way of faith is really the way of spiritual robustness and substance.

How lean-souled many of the Lord's people are! How little many of them and many churches have to give! How rare it is to find those - individually or collectively - who have much more than they need themselves and plenty for others! Starvation conditions are all too common among the Lord's people. There are many reasons for this, but our verse says that it is the preference for the earthly to the heavenly, and an unwillingness to forego the natural for the spiritual.... At any cost let us set the highest value and importance upon spiritual fulness, the fulness of Christ, and never by any means limit Him, or be instrumental in limiting Him in others!