Translation for 77:27

وَجَعَلۡنَا فِيهَا رَوَٰسِيَ شَٰمِخَٰتٖ وَأَسۡقَيۡنَٰكُم مَّآءٗ فُرَاتٗا ٢٧
and placed upon it towering, firm mountains, and given you fresh water to drink?