Assumption: Every word and verse in the Bible is the word of God. If he didn't say it directly, he gave it his seal of approval.
If you fully accept that assumption, that the Bible is without error, and every single word is from God, just look at the consequences of that.
You don't have to read any other book. It is your sole authority . You don't have to entertain any other possible authority. You can put all your eggs in one basket. You've found the truth! Discernment?? Not so important. Just read the Bible yourself and the truth will be revealed to you.
But then chatting to other Bible readers, you discover that verses have more than one meaning . Other people have their own interpretations. "The truth" seems to vary according to your point of view.
But still you maintain the Bible is your sole authority. No need to think anymore. Just quote verses. In that way, God is talking, not you.
2 Peter 1:16 For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.
2 Peter 1:17 For he received from God the Father honour and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased.
2 Peter 1:18 And this voice which came from heaven we heard, when we were with him in the holy mount.
2 Peter 1:19 We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:
2 Peter 1:20 Knowing this first, that no prophecy of the scripture is of any private interpretation.
2 Peter 1:21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.
When we quote scripture it is what God has already said as we have to believe by faith in Him. Again, it is not about religion against religion, man against man, who is right or wrong, but that of having a personal relationship with Christ Jesus as His sheep hear His voice.