Deuteronomy 8:15 Talmud References: Avot D'Rabbi Natan

הַמּוֹלִ֨יכֲךָ֜ בַּמִּדְבָּ֣ר ׀ הַגָּדֹ֣ל וְהַנּוֹרָ֗א נָחָ֤שׁ ׀ שָׂרָף֙ וְעַקְרָ֔ב וְצִמָּא֖וֹן אֲשֶׁ֣ר אֵֽין־מָ֑יִם הַמּוֹצִ֤יא לְךָ֙ מַ֔יִם מִצּ֖וּר הַֽחַלָּמִֽישׁ׃

who led thee through the great and dreadful wilderness, wherein were serpents, fiery serpents, and scorpions, and thirsty ground where was no water; who brought thee forth water out of the rock of flint;