Psalm 37:3 Trust in the LORD, and do good; so shalt thou dwell in the land, and verily thou shalt be fed.
God will feed us:
Jesus taught that those who seek God’s kingdom and righteousness shall be fed (Matt 6:32-33). He fed Israel in the wilderness with manna and quail and He has promised to feed us as well (Psa 33:18-19; 34:9-10). We are more important than sparrows and lilies, so we may depend upon God’s care of us.
However, in this verse the Psalmist is not speaking of physical food but spiritual. The Hebrew word verily means “truth”, so that the verse can be read, “. . . on truth thou shalt be fed.” The spiritual life of the one who trusts in Christ will be fed and sustained by truth.
Some feed on wind:
The unbeliever feeds on that which is not true (Isa 44:10, 20); even foolishness (Prov 15:14). Those who trust in human deliverance will be like Israel depending upon Egypt and Assyria (Hos 12:1). God will feed false prophets accordingly -- Jeremiah 23:15 “Therefore thus saith the LORD of hosts concerning the prophets; Behold, I will feed them with wormwood, and make them drink the water of gall: for from the prophets of Jerusalem is profaneness gone forth into all the land. “ Wind and ashes, wormwood and gall are the food of those who reject God’s truth in His word. They sow to the wind and reap a whirlwind (Hos 8:7).
Daily need of the soul:
The Scriptures are as daily need for the soul as bread is for the body. Job recognized this (Job 23:12). Jeremiah desired God’s word (Jer 15:16); Jesus taught that we need to feed spiritually upon Him and his word (Jn 6:53). Moses testified to Israel in the wilderness that God’s feeding of them with manna was a truth about feeding upon God and His word (Deut. 8:3). Peter tells us to purposely desire and partake of God’s word (1 Pe 2:2) and then warns of feeding upon error but feed upon truth in order to grow (2 Pe 3:17-18).
This means that we must avail our self of the Bible (to read), times of study (private but especially group study) and times of fellowship (Sunday School and worship). The writer of Hebrews cautions true believers to not forsake the assembling together. Anyone who is truly born again and desiring to live for God will not absent himself or herself from times of fellowship and Bible study. The indwelling Holy Spirit will guide us into these times – we must not grieve Him in His efforts.