This book not only articulates a tradition-specific Pentecostal rationality of Biblical Pragmatism, but also provides the first intellectual history of a major British classical Pentecostal denomination: the Elim Pentecostal Church. Pentecostal theologians increasingly acknowledge that their theological methodology should be informed by a Pentecostal rationality, epistemology and theological hermeneutics. Simo Frestadius offers such a Pentecostal rationality from a Foursquare perspective. Frestadius first analyses and evaluates some of the main contemporary Pentecostal rationalities and epistemologies to date, with a particular emphasis on the works of Amos Yong and James K.A. Smith and L. William Oliverio Jr., before proposing that Alasdair MacIntyre's tradition-focused and historically-minded narrative approach is conducive in providing a more tradition-constituted Pentecostal rationality.