'Rock' in the Bible

Behold, I will stand before you there on the rock at Horeb; there you shall strike the rock, and water will come out of it, so that the people may [have something to] drink.” And Moses did so in the sight of the elders of Israel.

Then the Lord said, “Behold, there is a place beside Me, and you shall stand there on the rock;

and while My glory is passing by, I will put you in a cleft of the rock and protectively cover you with My hand until I have passed by.