Matthew Poole and continuators on Psalms 78:20

20 Behold, he smote the rock, that the waters gushed out, and the streams overslowed; can he give bread also? can he provide flesh for his people?

Which, all things considered, seems not so wonderful, since fountains of water sometimes break forth unexpectly from or through Rocks. But it is far more difficult to give us bread and flesh, which we know not whether he can do. Or at least we have just cause to doubt of his good will to us, who hath made such a penurious provision for us, and denies us these common blessings of bread and flesh, which he gives to the worst of men▪

Marginal references: Exod. 17. 6. Numb. 20▪ 11.