The argument from conscience is one of the only two arguments for the existence of God alluded to in Scripture, the other being the argument from design (both in Romans). Both arguments are essentially simple natural intuitions. Only when complex, artificial objections are made do these arguments begin to take on a complex appearance. The simple, intuitive point of the argument from conscience is that everyone in the world knows, deep down, that he is absolutely obligated to be and do good, and this absolute obligation could come only from God. Thus everyone knows God, however obscurely, by this moral intuition, which we usually call conscience. Conscience is the voice of God in the soul.