Al-Mukhtasar
لَوْ نَشَآءُ جَعَلْنَـٰهُ أُجَاجًا فَلَوْلَا تَشْكُرُونَ ﴿٧٠﴾
If I wanted to make that water extremely bitter, such that it would be of no use for drinking nor for irrigation, I would have done so. Will you then not be grateful to Me for sending it down as palatable and a mercy for you?