First of all it is NOT your duty to convince others. Even the exalted prophets were told only to convey the truth plainly.
The question you have asked is very elementary and it has been answered here repeatedly.
Thanks to our respected Dr Shabbir Sahib, you have his answer in detail once again. Dr Shabbir's answers are always based on the Final, Infallible Quran.
Welcome to the forum. I recommend that you get all Ourbeacon books. Your knowledge will skyrocket!
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