Does God insert hypocrisy in those people who break the covenant they have promised to Him and tell lies?

 

Verses 75-78 of Chapter 9:

And of them are some who made a covenant with Allah (saying): "If He bestowed on us of His bounty, we will verily, give Sadaqah and will be certainly among the righteous.'' Then when He gave them of His bounty, they became stingy, and turned away, averse. So He punished them by putting hypocrisy into their hearts till the Day whereon they shall meet Him, because they broke that (covenant) with Allah which they had promised to Him and because they used to tell lies. Know they not that Allah knows their secret ideas, and their Najwa (secret counsels), and that Allah is the All-Knower of things unseen.

Did God allow a believing man to marry only one believing woman with the exception of orphan girls provided that they will be treated equally? 

 

God recommends a believing man not to marry more than one orphan girl (or non-orphan girl) considering the difficulty in treating them equally!

 

Verses 2-3 of Chapter 4:

And give the orphans their wealth and do not exchange the pure for the foul; and do not devour (or use up) their wealth, mixing it with your own; this is indeed a great sin. And if you fear that you will not be just towards orphan girls, marry the women whom you like - two at a time, or three or four; then if you fear that you cannot keep two women equally then marry only one or the bondwomen you own; this is closer to your not doing injustice.
 

Verse 20 of Chapter 4:

And if you wish to change one wife for another and you have given her heaps of treasure, do not take back anything from it; will you take it back by slander and open sin? 

Verse 129 of Chapter 4:

Ye are never able to be fair and just as between women, even if it is your ardent desire: But turn not away (from a woman) altogether, so as to leave her (as it were) hanging (in the air). If ye come to a friendly understanding, and practise self-restraint, Allah is Oft-forgiving, Most Merciful.

Did God inspire in every soul with conscience of what is right or wrong for it and give freedom to purify or corrupt it accordingly?

Verses 1-10 of Chapter 91:

By the sun and his brightness, and by the moon when she follows him, and by the day when it makes (the sun) conspicuous and by the night when it covers up (the sun), and by the heaven and Him Who established it, and by the earth and Him Who spread it, and by the human self and Him Who balanced it, then inspired it with its wickedness and its piety. Truly successful is he who purified his self and a failure he who suppressed it.

Verse 53 of Chapter 12:

"And I free not myself (from the blame). Verily, the self is inclined to evil, except when my Lord bestows His mercy (upon whom He wills). Verily, my Lord is Oft-Forgiving, Most Merciful.''