Isaiah 29:10

The people already found it more difficult to see God’s will and act obediently because God had shut their eyes and covered their heads (cf. Isaiah 6:9-10; 1 Samuel 26:12; 1 Kings 22:22; 2 Thessalonians 2:9-12). He had not given most of their prophets and seers insight into what was coming that they could share with the people. Isaiah and a few other faithful spokesmen were the exceptions.

". . . determined spiritual insensitivity becomes judicial spiritual paralysis." [Note: Motyer, p. 239.]