The marrow of certainty. Thomas Boston's theology of assurance. By Chun Tse. (Reformed Historical Theology, 77.) Pp. 302 incl. 1 table. Göttingen: Vandenhoeck & Ruprecht, 2023. €120. 978 3 525 56090 7; 2198 8226 - Rogers, Ben (The journal of ecclesiastical history, 2024)