Never be disrespectful to anyone in the future.
Study the Quran to learn more and more.
St Augustine's saying is in accordance with the Quran. God has given humans supremacy on earth, therefore, He leaves its governance up to us according to His laws.
EXAMPLE: Allah is Ar-Raaziq, yet, thousands of people in the world die of hunger every day in the world. Why? Bad governance, unjust distribution of wealth.
Allah can intervene, but He does not because LAN TAJIDA LI-SUNNATLLAHI TABDEELA (You will never find Allah's laws changing).
I apologise to our respected Professor Rafi on your behalf.