Seest thou not that the ships sail through the ocean by the Grace of Allah?- that He may show you of His Signs? Verily in this are Signs for all who constantly persevere and give thanks. 31 And when a wave covers them like shades (i.e. like clouds or the mountains of sea-water), they invoke Allah, making their invocations for Him only. But when He brings them safe to land, there are among them those that stop in the middle, between (Belief and disbelief). But none denies Our Signs except every perfidious ungrateful. 32 Mankind! fear your Lord and dread a Day whereon no father shall atone for his son, and no son shall atone for his father at all. Verily the promise of Allah is true. Let not the life of the world beguile you, and let not the great beguiler beguile you in regard to Allah. 33 Truly, God alone has knowledge of the Hour. He sends down the rain, and He knows what is in the wombs. No soul knows what it will earn tomorrow, and no soul knows in what land it will die. Surely, God is all knowing, all-aware. 34