In Numbers 20, after the Israelites complained, Moses smote this object twice & water came out
So Moses cried 
out to the Lord, saying, 'What shall I do to this ... Then Moses lifted up his hand 
and struck the rock twice with his rod; and water came forth abundantly, and... [DOC] [TLE] Old Testament Student Manual Genesis-2Samuel Numbers 1336 ... [PAR] The Israelites