Through formulating the conflict between reason and religion, in this study the point of conflict is determined. Then, explaining the intellectual and religious badness and goodness (divine command theory), their relation with Ismail`s sacrifice will be analyzed. According to theory of divine command, ethical knowledge will have a maximum dependence on religion. When we present this principle to Ismail`s sacrifice, we will be encountered by ethical disturbances which are led by maximum domination and reading of the divine command theory. Therefore, we have to either abandon ethics or present a more moderate version of the divine command theory so that it could be compatible with ethics. Each one of these methods is meagerly successful in respect to solving the conflict, but the last method is the most successful one.