In Numbers 20, after the Israelites complained, Moses smote this object twice & water came out
.... 
After crucifying Jesus Christ (striking the rock), we ought to speak... [DOC] [TLE] Numbers 20:11 Then Moses raised his arm and struck the rock twice ... [PAR] Moses lifted up his hand, and struck the rock with his rod twice: and water came 
forth ... Water came pouring out, and all the people and their animals drank.