As the Israeli tribes travelled deeper into the wilderness of Sinai toward their promised home, their principal need was water. Once, when the need was especially acute, God told Moses to smack a nearby rock. To everyone’s astonishment, water gushed out. God knows the map-line of every underground
aquifer and how to provide for his people. That happened more than once as God proved his faithfulness to his people. Israel immortalized God's power in poetry and song:
He split the rocks in the desert and gave them water as abundant as the seas;
He brought streams out of a rocky crag and made water flow down like rivers.
Psalm 78:15-16
He brought streams out of a rocky crag and made water flow down like rivers.
Psalm 78:15-16
But song alone can’t change character and Israel never seemed to pass the trust-test, complaining constantly, testing God’s patience, quarreling with God. Moses even named a couple of memorable landmarks Massah (i.e. Testing) and Meribah (i.e. Quarreling) to mark these low-points in their spiritual odyssey.