One of the most interesting rational religious choice models is that presented by Durkin and Greeley in a 1991 article. The authors base the problem of uncertainty of religious choice on Pascal’s Wager as a maximization problem of expected benefit and in faith as an insurance. The objective of the present article is to test the Durkin and Greeley hypothesis model for Brazil. Two dependent variables were used in the tests: religious attendance and faith, as in Durkin and Greeley’s original model, and resulted in a highly significant relation. The belief in an after-life had a positive and significant impact on the dependent variable degree of faith. In the case of the tests of the third and last hypothesis of the model, that is, religious attendance and faith are positively related to the religious capital accumulated by the individual, ambiguous results were observed in relation to the confirmation of that hypothesis. An unexpected result turned up: the more conservative the individual showed himself or herself in relation to abortion, the lower was his or her degree of faith and lower was his or her religious frequency.