John Gill Commentary Psalms 37:19

"They shall not be put to shame in the time of evil; And in the days of famine they shall be satisfied." — Psalms 37:19 (ASV)

They shall not be ashamed in the evil time Of affliction and persecution, or of old age, or in the day of judgment, when it will go ill with others; see (1 John 2:28);

and in the days of famine they shall be satisfied : whether it is understood figuratively of a famine of hearing the word, or literally of a proper famine of bread and water: these God will provide for them, as he did for Elijah, and they shall be sure unto them, and therefore let them not fret nor envy.