His father's harsh treatment did not stop Abraham from delivering the message of truth. Angry and sad to see people prostrate before idols, he was determined to stamp out these practices and went to the town to debate with the people, knowing full well that he might suffer harm.
Like a wise doctor searching for the cause of a sickness so as to prescribe the proper cure, or like a judge who questions the accused sharply so that he might detect the truth, Abraham asked them: "Do the idols see you when you prostrate before them? Do they benefit you in any way?" They quickly tried to defend their beliefs. They argued that they knew their idols were lifeless but that their forefathers had worshipped them; to them this was proof enough for their belief.
Abraham explained that their forefathers had been wrong. This angered them and they retorted: "Are you condemning our gods and our forefathers? Or are you just joking?"
Abraham showed no fear as he replied: "I am serious. I come to you with a true religion. I have been sent with guidance from our Lord Who alone is worthy of worship, Who is the Creator of the heavens and the earth, and Who regulates all affairs of life, unlike the dumb idols which are just stone and wood."
To convince them that the idols could not harm him, he challenged: "I have already condemned them; if they had any power they would have harmed me by now!"