I no longer believe that the Bible is consistent with itself. So I won't argue that there are parts of the Bible that claim God has revealed himself in various ways, especially Jesus. What I do know however, is that the inscrutability of God is a dominant theme of many parts of the Bible. Such as the following:
Romans 11:33 Oh, the depth of the riches and wisdom and knowledge of God! How unsearchable are his judgments and how inscrutable his ways!
Job 26:14 Behold, these are but the outskirts of his ways, and how small a whisper do we hear of him! But the thunder of his power who can understand?”
1 Corinthians 2:11 For who knows a person's thoughts except the spirit of that person, which is in him? So also no one comprehends the thoughts of God except the Spirit of God.
Isaiah 55:8, 9
For my thoughts are not your thoughts,
neither are your ways my ways, declares the Lord.9 For as the heavens are higher than the earth,
so are my ways higher than your ways
and my thoughts than your thoughts.
Pslam 147:5 5
Great is our Lord, and abundant in power;
his understanding is beyond measure.