Trust in the LORD, and do good; so shalt thou dwell in the land, and verily thou shalt be fed.
Trust in the Lord, and do good - the right course, when seeing the prosperity of the ungodly, instead of giving way to the temptation to anger and envy (Psalms 37:1).
So shalt ... the land - Psalms 37:27; Psalms 37:29, fulfilled in part in the possession of Canaan by Israel; partly, also, by the promise even of "the life that now is," which is appended to "godliness" (1 Timothy 4:8); mainly in the "inheritance of the earth" hereafter promised to the righteous (Psalms 37:9; Psalms 37:11; Psalms 37:22; Psalms 37:34), after "the wicked" shall have been "cut off" (Proverbs 2:21; Proverbs 10:30; 2 Peter 3:13).
Verily [ 'ªmuwnaah (H530 )] thou shalt be fed - is rather, as the parallelism favours 'thou shalt feed on truth;' the opposite of "feeding on ashes" (Isaiah 44:20), and "feeding on wind" (Hosea 12:1). The truth fed on by the believer is the truth of God, His faithfulness, in which the believer has great joy. L. de Dieu takes it, 'feed in security' or 'stableness' (margin, and Isaiah 33:6).