Abraham had established a definite reasoning against idolators. Nothing was left for him except to reason against the people who proclaimed themselves gods.
When the king, Namrud, heard of Abraham's safe exit from the fire he became very angry. He feared that the status of godhead he had proclaimed for himself was now challenged by an ordinary human being. He summoned Abraham to the palace and held a dialogue with him, which Allah the Almighty recounted: Have you not thought about him who disputed with Abraham about his Lord (Allah), because Allah had given him the kingdom? When Abraham said (to him). 'My Lord (Allah) is He Who gives life and causes death." He said: "I give life and cause death." Abraham said: "Verily! Allah causes the sun to rise from the east; then cause it you to rise from the west." So the disbeliever was utterly defeated. And Allah guides not the people who are Zalimeen (wrongdoers, etc.). Surah 2: 258