1 Corinthians 10:2-4

And all [of them] were baptized into Moses [into his safekeeping as their leader] in the cloud and in the sea; and all [of them] ate the same spiritual food; [Ex 16:4, 35] and all [of them] drank the same spiritual drink, for they were drinking from a spiritual rock which followed them; and the rock was Christ. [Ex 17:6; Num 20:11]