The subject about which these addressees of the Quran were in doubt was not the existence of God but the oneness of God. While accepting the existence of God in a traditional manner, they continued to practise the religion of their forefathers and their leaders. The Quran proved the beliefs of their forefathers to be baseless, but they were not ready to accept this position. On the one hand, they found themselves without supporting arguments while, on the other, they found it impossible to banish from their minds the image of the greatness of their forefathers and leaders. This dual dilemma had pushed them into the realm of doubt. The preacher of God appeared to them too small a person for them to accept, or to act on his advice to abandon their so-called great men. Those who do not accept the Truth through persuasion expose themselves to the danger of having to accept it under threat of punishment. They may accept it in the latter instance, but at that time their acceptance will be of no avail.