1 Corinthians 10:1-2

I would not have you ignorant, my brethren, that all our fathers were under the Cloud, all passed thro' the sea:

Treasury of Scripture Knowledge

Summary

Yet thou in thy manifold mercies forsookest them not in the wilderness: the pillar of the cloud departed not from them by day, to lead them in the way; neither the pillar of fire by night, to shew them light, and the way wherein they should go.

The pillar

Bible References

The pillar

1 Corinthians 10:1
I would not have you ignorant, my brethren, that all our fathers were under the Cloud, all passed thro' the sea: