“Delight thyself also in the Lord; and he shall give the desires of thine heart.”
The beginning of this psalm is a heap of instructions: The great lesson intended in it is placed in verse 1. “Fret not thyself because of evil-doers, neither be thou envious against the workers of iniquity.” It is resumed, verses 7, 8, where many reasons are asserted to enforce it.
1. Do not envy them. Be not troubled at their prosperity.
2. Do not imitate them. Be not provoked by their glow-worm happiness, to practice the same wickedness to arrive to the same prosperity.
3. Be not sinfully impatient, and quarrel not with God, because he hath not by his providence allowed thee the same measures of prosperity in the world. Accuse him not of injustice and cruelty, because he afflicts the good, and is indulgent to the wicked. Leave him to dispense his blessings according to his own mind.
4. Condemn not the way of piety and religion wherein thou art. Think not the worse of thy profession, because it is attended with affliction. The reason of this exhortation is rendered, verse 2. “For they shall soon be cut down like the grass, and wither as the green herb;” amplified by a similitude or resemblance of their prosperity to grass: their happiness hath no stability. It hath, like grass, more of color and show, than strength and substance. Grass nods this and that way with every wind. The mouth of a beast may pull it up, or the foot of a beast may tread it down; the scorching sun in summer, or the fainting sun in winter, will deface its complexion.