Charles H. Spurgeon on Psalms 38:7

For my loins are filled with a loathsome disease —a hot, dry, parching disorder, probably accompanied by loathsome ulcers. Spiritually, the fire burns within when the evil of the heart is laid bare. Note the emphatic words, the evil is loathsome, it is in the loins, its seat is deep and vital —the man is filled with it. Those who have passed through the time of conviction understand all this. And there is no soundness in my flesh. This he had said before, and thus the Holy Spirit brings humiliating truth again and again to our memories, tears away every ground of glorying, and makes us know that in us, that is, in our flesh, there dwelleth no good thing.