V.3 Job wants to reason with God, but not to listen to Him.
V.4-6 He does not think much of the advice he is receiving.
V.15 This sounds good, but is it? Notice the second part, he is quite determined to argue for his own ways. He was trusting himself, and not God.
V.18 Such verses prove what was in his heart. He was quite satisfied that he was right.
V.19 He would die if he stopped talking, he says!
V.20-28 You can plainly see that Job is still filled with self-confidence. He is not ready to surrender.