Job's three friends refused to reply further to him because he kept insisting on his innocence.
Then Elihu son of Barakel the Buzite, of the clan of Ram, became angry. He was angry because Job refused to admit that he had sinned and that God was right in punishing him.
He was also angry with Job's three friends because they had condemned God by their inability to answer Job's arguments.
Elihu had waited for the others to speak because they were older than he.
But when he saw that they had no further reply, he spoke out angrily.