The book of Job shows that initially Job spoke many things and did not give God the opportunity to speak. Job’s many words darkened God’s counsel and kept him in darkness (38:2).
It was not until Job finished speaking that God appeared to him. When Job saw the light of God’s countenance and contacted God, his prayer changed. He no longer spoke his own words but the words that God had spoken (42:1-6). Previously, his prayers were out of himself and did not touch God; thus, his prayers expressed himself. At the end, his prayers were the issue of meeting and hearing God. Job’s prayers expressed God.