Their heart is as fat as grease - They are egregiously stupid, they have fed themselves without fear; they are become flesh-brutalized, and given over to vile affections, and have no kind of spiritual relish: but I delight in thy law - I have, through thy goodness, a spiritual feeling and a spiritual appetite.
Their heart is as fat as grease - They are prospered. They have health, property, influence, comforts of all kinds. heaven appears to smile upon them, and it seems as if it were one effect of a wicked course of life to make people prosperous. See Psalm 17:10, note; Psalm 73:7, note.
But I delight in thy law - Though its observance should not be attended by any such results as seem to follow wickedness, though I am poor, emaciated, pale - disappointed, slandered, persecuted - though my lot in life is among the lowly and the despised - yet I will adhere to my purpose to keep thy law. It is, and it shall be, my delight, whatever may be the effects of so observing it. See Psalm 119:35.