 Mill held that one may hope that God exists, but one may not believe that God exists, as the evidence is lacking. Suppose one agrees with Mill, that faith can subsist on hope, trust, or some other non-doxastic attitude other than belief. Suppose further that one seeks to build a theistic commitment on hope. The acceptance of theistic hope provides reason to act as if theism were true, not because one believes that it is true, but because one hopes that it is. What is it to act as if theism is true? It is to put into practice behaviors characteristic of a particular religious tradition, such as Judaism, Christianity, or Islam. Acting as if a certain religious tradition were true would include reorienting one’s values, priorities, and life-projects in order to reflect a commitment to a particular tradition. It would also involve engaging in the rituals and behaviors associated with the particular tradition; and investing a significant portion of one’s time and money in support of causes associated with the tradition.