And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ. Spiritual drink - By the βρωμα πνευματικον spiritual meat, and πομα πνευματικον, spiritual drink, the apostle certainly means both meat and drink, which were furnished to the Israelitish assembly miraculously, as well as typically: and he appears to borrow his expression from the Jews themselves, who expressly say הלחם הלז רוחני hallechem hallaz ruchani, that bread was spiritual, and מיים רוחניים היו meyim ruchainiyim haiu, the waters were spiritual. Alschech in legem. fol. 238, to which opinion the apostle seems particularly to refer. See Schoettgen.
The spiritual rock that followed them - There is some difficulty in this verse. How could the rock follow them? It does not appear that the rock ever moved from the place where Moses struck it. But to solve this difficulty, it is said that rock here is put, by metonymy, for the water of the rock; and that this water did follow them through the wilderness. This is more likely; but we have not direct proof of it. The ancient Jews, however, were of this opinion, and state that the streams followed them in all their journeyings, up the mountains, down the valleys, etc., etc.; and that when they came to encamp, the waters formed themselves into cisterns and pools; and that the rulers of the people guided them, by their staves, in rivulets to the different tribes and families. And this is the sense they give to Numbers 21:17 : Spring up, O well, etc. See the places in Schoettgen.
Others contend, that by the rock following them we are to understand their having carried of its waters with them on their journeyings. This we know is a common custom in these deserts to the present day; and that the Greek verb ακολουθεω, to follow, has this sense, Bishop Pearce has amply proved in his note on this place. The Jews suppose that the rock itself went with the Israelites, and was present with them in their thirty-eight stations, for only so many are mentioned. See Alschech in legem. fol. 236. And see Schoettgen.
Now, though of all the senses already given that of Bishop Pearce is the best, yet it does appear that the apostle does not speak about the rock itself, but of Him whom it represented; namely, Christ: this was the Rock that followed them, and ministered to them; and this view of the subject is rendered more probable by what is said 1 Corinthians 10:9, that they tempted Christ, and were destroyed by serpents. The same rock is in the vale of Rephidim to the present day; and it bears aboriginal marks of the water that flowed from it in the fissures that appear on its sides. It is one block of fine granite, about seven yards long, five broad, and - high. A fragment of this typical rock now lies before me, brought by a relative of my own, who broke it off, and did not let it pass into any hand till he placed it in mine. See the note on Exodus 17:6.