In his book Taking God at His Word, in Chapter 5, "God's Word is Final," Kevin DeYoung quotes J.I. Packer
Our own intellectual competence is not the test and measure of divine truth. It is not for us to stop believing because we lack understanding, but to believe in order to understand.
This aspect of God's authority, of course, sits alongside the attribute of Scripture's clarity. God has given us a word which He wants us to understand. It is not humility to doubt God's word when we can't understand it. While we should doubt our own hearts, we don't doubt God because something is difficult to understand. And of course, these principles can't even begin without a pre-supposition that God is God and that He has spoken.