In a rather gross metaphor, the psalmist refers to those who are contemptuous of God like a lump of grease: The insolent smear me with lies, but with my whole heart I keep your precepts; their heart is unfeeling like fat, but I delight in your law.
The phrase unfeeling like fat describes a an attitude of callousness and spiritual dullness. Arrogance and self-sufficiency numb the impertinent to the ways of God. In contrast, the writer chooses to follow God’s law. He reads the Scriptures and lives by their direction. His inner being grows healthier as pride melts away in the light of God’s Word.
Spiritual health is similar to physical health. If I allow fatty tissue to invade my heart, my body suffers and the build-up prematurely ends my life. Lard oozing through my arteries is the last thing I want, so I exercise and eat right in order to counteract the situation.
I hope to keep such catastrophe from my spiritual heart as well. Taking in God’s word and putting it into practice burns off the fat and creates a heathy soul in its place, one responsive to God and to the people around me.
Psalm 119:69-70


