We destroyed generations before you when they did evil. (When) their Messengers came to them with clear verses they would not believe; so We recompense the sinning nation. (13)

After them We made you their successors in the earth, so that We might see how you would do. (14)

When Our verses, clear verses, are recited to them, those who do not reckon to meet Us say: 'Bring a Koran other than this, or make changes in it. ' Say: 'It is not for me to change it by myself. I follow nothing, except what is sent down to me. Indeed, if I should rebel against my Lord I fear the punishment of a Great Day.' (15)

Say (Prophet Muhammad): 'Had Allah willed, I would not have recited it to you, nor would He have made it known to you. I lived among you all my life before it (was sent down). Will you not understand? (16)

Who does greater evil than he who forges a lie about Allah or belies His verses? Indeed, the evildoers do not prosper. (17)

They worship, other than Allah, that which can neither harm nor benefit them, and say: 'These are our intercessors with Allah. ' Say: 'Will you tell Allah of something He does not know about either in the heavens or earth? Exaltations to Him! Exalted be He above what they associate! ' (18)

(Before) mankind were but one nation, then they differed with one another. But for a Word that preceded from your Lord, it (the matters) over which they differed had already been decided. (19)

They say: 'Why has no sign been sent down to him from his Lord. ' Say: 'The Unseen belongs to Allah alone. Wait if you will I am one of those who wait. ' (20)

When We let people taste (Our) mercy after they had been afflicted by hardship, they devise against Our verses. Say: 'Allah is more swift in devising. ' Indeed, Our Messengers (the angels) are writing down whatever you devise. (21)

It is He who conveys you by land and sea. When you are on board the ship and the ships run with them upon a fair breeze they are joyful. (But when) a strong wind and waves come upon them from every side, and they think they are encompassed, they supplicate to Allah, making their religion His sincerely, (saying): 'If You save us from this, we will indeed be among the thankful. ' (22)