Authority can mean different things to different people. For example, some document or other may be authoritative for particular group even though it's not reliable. It's just that the group has accepted that document as authoritative for their group. And some documents are truthful and reliable but they are ignored, so they have no authority for that particular group.
D. A. CarsonEffective prayer is the fruit of a relationship with God, not a technique for acquiring blessings.
D. A. CarsonOthers have questions about how it is that God and human beings can both be speaking through the one document such that you can see and read the personalities of the human authors with their individual vocabularies and literary genres, and yet this is nevertheless the word of God. How can that be? This is quite a contrast with Islam, for example, which holds that the Koran has been dictated in Arabic by God and as a result Mohammed is nothing more than the one who memorizes the word so as to pass it on. There is nothing of human contribution.
D. A. Carson