“The LORD does not let the righteous go hungry, but he thwarts the craving of the wicked” (Proverbs 10:3 ESV).
To spiritualize the temporal promises would be to lose great enlargement of faith. They are not restricted to the Old Dispensation. If David was preserved from famishing, and that too by those most unlikely to help him, Paul could also in similar trial “set to his seal” — “I have all, and abound; I am full” (Phil. 4:18). David was preserved from famishing by Shobi the brother of his bitter enemy, and by Machir also of the house of Saul (2 Sam. 17:27-29 with 2 Sam. 10:1-4; compare Psalm 37:25). How does our gracious God double and redouble his engagements! (Heb. 13:5; five negatives in the original.) He sends us to the fowls of the air for the confirmation of our “little faith.” — “Are not ye much better than they?” (Matt. 6:25, 26; compare Psalm 34:15). Yet “the promises require faith, whereby we believe that God helpeth us” (Michael Cope, A Godly and Learned Exposition Vppon the Prouerbes of Solomon). He may for the exercise of faith suffer us to hunger (1 Cor. 4:11; 2 Cor. 11:27 with Deut. 8:3; Matt. 4:2-4) — yet not to famish (Psalm 37:3; Isa. 33:16; Matt. 6:32). And does not his unfailing care for temporal provision convey the assurance that he will not suffer the soul to famish? “The Good Shepherd knows his sheep.” He “seeks them out in the cloudy and dark day,” and brings them into his fold, where “they go in and out, and find pasture” (John 10:9, 14; with Ez. 34:12). Awful indeed is the contrast of the wicked — their substance cast out (Job 20:15) — themselves buried in the ruins of their own folly! (Psalm 46:6; Luke 12:19-20; Luke 16:23).
Source: An Exposition of the Book of Proverbs by Charles Bridges (1847)