Contradiction with Job 11:7
This verse suggests that God's understanding is unsearchable, whereas Isaiah 40:12 speaks of God's specific measurable acts.
Job 11:7: Canst thou by searching find out God? canst thou find out the Almighty unto perfection?
Contradiction with Romans 11:33
This verse emphasizes the unsearchable judgments and ways of God, contrasting with the measurable acts described in Isaiah 40:12.
Romans 11:33: O the depth of the riches both of the wisdom and knowledge of God! how unsearchable [are] his judgments, and his ways past finding out!