Albert Barnes Commentary Psalms 33:19

"To deliver their soul from death, And to keep them alive in famine." — Psalms 33:19 (ASV)

To deliver their soul from death — To preserve their “lives” — for so the word “soul” is to be understood here. The meaning is, to keep them alive. That is, God is their Protector; He guards and defends them when in danger.

And to keep them alive in famine — In times of want. Compare Job 5:20. He can provide for them when the harvests fail. Famine was one of the evils to which the inhabitants of Palestine, and of Eastern countries generally, were particularly exposed, and it is often referred to in the Scriptures.