Their heart is as fat as grease; but I delight in thy law.
Their heart is as fat as grease - as obese as fat (Deuteronomy 32:15): a mind reprobate [incapable of judging and appreciating, noun (G3563) adokimon (G96), Romans 1:28] (Psalms 17:10; Psalms 73:7) - stupid and insensible as to spiritual things (Isaiah 6:10; Acts 28:27). Contrasted with "good judgment" - literally, 'goodness of taste;' a perception capable of discriminating and relishing things sacred.