Who gave you abilities to be Logical ? Answer is God ,so god is every where my dear friend .. there is benefit for us to follow the orders of God .. God doesnt need us but we need God ..
Quran is a one complete Book for our Guidence ,No any part of Quran just verses,Quran tells us all about the all messengers of God From Adam to Muhmmad ..
The proof is Avaialbe read the Quran and u will be surprised to see that it told the complete science 1400 years ago ,can anybody do that ? definatly not ,the only superpower God can do that ...
Greatful
God is One ,the islam and Christian have same message of God ...