וְלֹ֣א צָמְא֗וּ בָּחֳרָבוֹת֙ הֽוֹלִיכָ֔ם מַ֥יִם מִצּ֖וּר הִזִּ֣יל לָ֑מוֹ וַיִּ֨בְקַע־צ֔וּר וַיָּזֻ֖בוּ מָֽיִם׃
And they thirsted not When He led them through the deserts; He caused the waters to flow out of the rock for them; He cleaved the rock also, and the waters gushed out.’
Read Jewish philosophy on Isaiah 48:21: Rambam's Guide for the Perplexed, Saadia Gaon, and classical Jewish philosophical sources, free online.