Jeremiah 15:1

15:1 Then the Lord said to me, “Even if Moses and Samuel stood before me pleading for these people, I would not feel pity for them! Get them away from me! Tell them to go away!

Lamentations 3:44

3:44 You shrouded yourself with a cloud

so that no prayer can get through.

Romans 11:33

11:33 Oh, the depth of the riches and wisdom and knowledge of God! How unsearchable are his judgments and how fathomless his ways!