Psalms 105:41

As the believer commonly thrives best in his soul when under the cross; so the church also flourishes most in true holiness, and increases in number, while under persecution. Yet instruments shall be raised up for their deliverance, and plagues may be expected by persecutors. And see the special care God took of his people in the wilderness. All the benefits bestowed on Israel as a nation, were shadows of spiritual blessings with which we are blessed in Christ Jesus. Having redeemed us with his blood, restored our souls to holiness, and set us at liberty from Satan's bondage, he guides and guards us all the way. He satisfies our souls with the bread of heaven, and the water of life from the Rock of salvation, and will bring us safely to heaven. He redeems his servants from all iniquity, and purifies them unto himself, to be a peculiar people, zealous of good works.

He opened the rock, and the waters gushed out. With Moses' rod and his own word he cleft the rock in the desert, and forth leaped abundant floods for their drinking where they had feared to die of thirst. From most unlikely sources the all sufficient God can supply his people's needs; hard rocks become springing fountains at the Lord's command. They ran in the dry places like a river: so that those at a distance from the rock could stoop down and refresh themselves, and the stream flowed on, so that in future journeyings they were supplied. The desert sand would naturally swallow up the streams, and yet it did not so, the refreshing river ran "in the dry places." We know that the rock set forth our Lord Jesus Christ, from whom there flows a fountain of living waters which shall never be exhausted till the last pilgrim has crossed the Jordan and entered Canaan.