God specified the timing for daily five times prayers and advised people through the prophet to maintain the timing strictly and ask their family members to do the same!

Verses 129-132 of Chapter 20

Had not a decree been fore-ordained by your Lord and a term for respite been appointed, judgment on them would have been passed now immediately. Therefore O Muhammad, endure what they say and glorify your Lord with His praise before the rising of the sun and before its setting, and glorify Him during the hours of the night and at the extremes of the day: perhaps you may feel satisfied. And do not cast an envious look at the worldly property We have bestowed on different kinds of people, for We have given them all that to put them to trial, and the lawful provision of your Lord is better and more lasting: enjoin Salat on the members of your family and yourself also observe it strictly. We do not ask any provision of you, for it is We Ourselves Who give you provision. And the ultimate good is for piety.

By giving freedom to human beings and balancing the natural tendency of motivation to decide the right and wrong pathways, God put them to trial!

Verses 118-119 of Chapter 11

If thy Lord had so willed, He could have made mankind one people: but they will not cease to dispute.Except those on whom thy Lord hath bestowed His Mercy: and for this did He create them: and the Word of thy Lord shall be fulfilled: "I will fill Hell with jinns and men all together."

Human soul is certainly prone to evil except that whereon God bestows His mercy!

Verse 53 of Chapter 12

"Nor do I absolve my own self (of blame): the (human) soul is certainly prone to evil, unless my Lord do bestow His Mercy: but surely my Lord is Oft-forgiving, Most Merciful."

God surely gives in this word the reward of those who do good! However, the reward of the Hereafter which is much better is only for those who believe and fear God!

Verses 56-57 of Chapter 12:

And this is how We gave Yusuf the control over that land; to stay in it wherever he pleased; We may convey Our mercy to whomever We will, and We do not waste the wages of the righteous. And undoubtedly the reward of the Hereafter is better, for those who accept faith and remain pious.

Most people believe not in Allah without associating other as partners with Him!

Verses 105-106 of Chapter 12:

And how many Signs in the heavens and the earth do they pass by? Yet they turn (their faces) away from them! And most of them believe not in Allah without associating (other as partners) with Him!

Those who believe and fear God have been given assurance of good tidings in this world and in the Hereafter!

Verses 63-64 of Chapter 10:

Those who have accepted faith and practice piety.There are good tidings for them in the life of this world and in the Hereafter; the Words of Allah cannot change; this is the supreme success.

God promised to save the dead body Firaun as a sign to the people! 

Verse 92 of Chapter 10:

"This day We shall salvage your body so that you may be a sign for those after you; and indeed most people are neglectful of Our signs."

God's words have now been proven fully based on both the discovery of Firaun's preserved dead body and the reality that most of the people are ignorant of His signs include this.