Answer: False
Explanation: Biblical theology is based on the word of God given through the Gospels and the revelation also given in the Bible. This theology refers to the hidden knowledge revealed to people through God's prophets and visionaries. It is therefore a matter of the supernatural knowledge which God or deity communicates to human kind. Given that it is Biblical theology based on God's supernatural revelation originating outside this world, it cannot be said that this theology is based on reason and that the revelation of God is manifested through this / his created world.
The aforementioned principle of reason and the revelation of God through his created world are the principles of the Enlightenment, the Age of Reason, and all the movements of mankind who believed in God, but believed that God, after creation, left this world to be ruled by people.