Proverbs 13:25 Gill
The righteous eateth to the satisfying of his soul,…. He is blessed with a sufficient competency to live upon; and he is contented with what he has, and uses it moderately; he has enough to eat, and is contented with his portion, and eats no more than sufficeth; he eats to the satisfying of his appetite, and no more; he does not indulge to luxury and excess: and so as to spiritual things; he eats to the satisfying of his soul, with the goodness and fatness of God’s house, with the word and ordinances, with the promises of the Gospel, and with Jesus Christ, the bread of life; with these he is satisfied, as with marrow and fatness;
but the belly of the wicked shall want; not only spiritual food, which he has no appetite for, but corporeal food; he shall starve in the midst of plenty, not having a heart to put that food into his mouth, and fill his belly with it, as nature requires, through his covetousness; or, having spent his substance in rioting and wantonness, wants bread to satisfy the craving of his appetite.
In another teaching we have Jesus telling us:
Matthew 5:6 Blessed are they which do hunger and thirst after righteousness: for they shall be filled.