Behold the eye of the Lord, &c. Whosoever therefore would have safety must expect it only from the watchful eye and almighty hand of God. Is upon them that fear him These are the chief objects of his care and favour. Upon them that hope in his mercy That place their hope, and trust, and happiness, not in any creature, but only in God and in his mercy and blessings. To deliver their soul from death That is, their life, when he sees it to be expedient for them: for sometimes it is better for them to die than to live, as both good and bad men have declared; and when it is so, it is known to God, but not to us. And therefore the constant accomplishment of this and the like promises, in a literal sense, is not to be expected nor simply desired, except with submission to God's wise and gracious will.
Related Commentaries of Psalms 33:18
Psalms 33:18-19
18 Behold, the eye of the LORD is upon them that fear him, upon them that hope in his mercy;
19 To deliver their soul from death, and to keep them alive in famine.