Qur'an

Meaning of not getting deviated by the worldly life

Q: Allah mentioned to us not to get deviated by worldly life and not to love the worldly life. Is this correct?

If yes then we Muslims should not become engineers in software and technology because it leads to development of the world which leads to people loving and getting deviated by worldly life, even if it has benefit then it may also have no benefits. 

Meaning of "istiwaa"

Q: Is it mentioned in the Quran that Allah is above seven heavens? I know that Quran states that Allah has istiwa on Arsh but is it specifically mentioned that he is above the seven heavens?

Also when we say He is above the seven heavens does it actually mean that he has Istiwa on Arsh? Also is it permissible to say that He is above seven heavens?

The religon of Islam

Q: Is it true that all peaceful verses was abrogated by war verses in the Quraan? Is it also true that Surah Kafiroon was revealed when the Muslims were weak... When Muslims got the power to fight against disbelievers Surah kafiroon was abrogated? Ad-Dahhak bin Muzahim said, it abrogated every agreement of peace between the prophet and any idolator, every treaty and every term. (Tafsir ibn kathir on 9:5) Al-Awfi said that Ibn Abbas commented "No idolator had anymore treaty or promise of safety ever since Surah Bara'ah was revealed (Tafsir ibn kathir on 9:5)

Can you enlighten us with your answer?