They were hungry and thirsty: their soul fainted in them.

“Prophetic language affirms that the conversion of those in error is the work of God. For "they went astray in the wilderness in a thirsty land," the psalmist says, and then he adds, "So he led them forth by the right way, that they might go to the city where they dwelled," and "when the Lord turned again the captivity of Zion." In like manner also the comfort of the afflicted is ascribed to God, Paul thus says, "Blessed be God, even the Father of our Lord Jesus Christ, who comforts us in all our tribulation." Again, the psalmist says, speaking in the person of God, "You called on me in trouble, and I delivered you." And the setting upright of those who stumble is ascribed innumerable times by Scripture to the power of the Lord: "You have held me by the hand that I might fall, but the Lord was my help," and "Though he fall, he shall not be cast away, for the Lord upholds him with his hand," and "The Lord helps them that are fallen." And the recovery of the distressed admittedly belongs to the loving-kindness of God, if Eunomius means the same thing of which we learn in prophecy, as the Scripture says, "You laid burdens on our backs; you allowed people to ride over our heads; we went through fire and water, and you brought us to a place of abundance."”

“"They wandered in the wilderness, in a dry place, they found not the way of a city to dwell in" [Psalm 107:4]. We have heard a wretched wandering; what of want? "Hungry and thirsty, their soul fainted in them" [Psalm 107:5]. But wherefore did it faint? For what good? For God is not cruel, but He makes Himself known, in that it is expedient for us, that He be entreated by us fainting, and that aiding us He be loved.”

“Then they cried unto the Lord in their trouble,.... To be directed in their way, and for food and drink, as travellers do when in such distress. Natural men, even the very Heathens, when in distress, will cry unto God for relief, as Jonah's mariners did, Jon 1:5. It is a time of trouble with awakened sinners, when they are convinced of sin by the Spirit of God; when they are pricked to the heart with a sense of it; when the terrors of death and hell get hold of them; when they see themselves lost and undone, and in a wrong way, and know not what to do; when they find themselves starving and ready to perish; and then they cry, that is, pray, unto the Lord, the God of their lives, whose ears are open to their cries. And he delivered them out of their distresses; by leading them in a right way, and by satisfying and filling their hungry souls with good things, as it is explained, Psa 107:7.”