Explain Mike Johnson, please

Christians, please explain to me what Mike Johnson meant when he said, "Go pick up a Bible off your shelf and read it – that's my worldview. That's what I believe and so I make no apologies for it."

He must know that many devout, well-learned, Jesus-rose-from-the-dead Christians--with vastly more knowledge of the Bible than he has--fundamentally disagree with each other on significant parts of the Bible.

And this would include highly respected Christian leaders and scholars whose interpretation of the Bible seriously undermine many core things Johnson seems to support. His confidence seems unexamined as does, well, the worldview he makes no apologies for. Johnson reminds me of what Twain said, about "Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime."