Do you not see that the ship sails in the sea by Allah's grace so that he may show you some of His Signs?55 Indeed, there are many signs in this for every patient and, grateful person.56 And when a wave ( in the sea) covers them like the mountains, they invoke Allah making their faith pure for Him alone. Then, when He brings theta safe to the land, some one among them follows the middle ways57 and does not deny Our Signs except the one who is treacherous and ungrateful.58 O people! Avoid the wrath of your Lord and fear the Day when no father shall avail anything for his son, nor shall any son avail anything for his fathers59 Allah's promise is surely true.60 So let not this world' life deceive you,61 nor let the deceiver deceive you concerning Allah.62 Allah alone has the knowledge of the Hour: He alone sends down the rain and He alone knows what is taking shape in the wombs of the mothers. No living being knows what he will earn the next day, nor does anybody know in what land he will die. Allah alone is All-Knowing, All-Aware.63