True faith will produce good works : A discourse, wherein are opened the nature of faith, and its powerful influence on the heart and life; together with the contrary nature and effects of unbelief: and answers to various objections. : To which are perfixed [sic] a brief view of the present state of the Protestant world, with some remarks on the writings of Mr. Sandeman. / - Backus, Isaac, (Printed by D. Kneeland, for Philip Freeman, opposite the cornfields in Union-Street,, 1767)