رَّبُّكُمُ ٱلَّذِى يُزْجِى لَكُمُ ٱلْفُلْكَ فِى ٱلْبَحْرِ لِتَبْتَغُوا۟ مِن فَضْلِهِۦٓ ۚ إِنَّهُۥ كَانَ بِكُمْ رَحِيمًا Qur’an Al-Israa (17:66)Rabbukumu allathee yuzjee lakumu alfulka fee albahri litabtaghoo min fadlihi innahu kana bikum raheeman
This illustration of the sea, and the skill with which, by Allah's grace, men pass through it with ease in order to earn material gains by commerce, social gains by human intercourse, and spiritual gains by knowledge, is frequently used to enforce Allah's goodness to man. Cf. ii. 164.