A foundational manual for Christians on how to read, interpret, and teach Scripture, arguing that the ultimate goal of Christian instruction is to lead hearers toward love of God and neighbor while also making truth engaging; rhetoric and secular learning are useful tools but must be subordinated to charity and sound doctrine. It lays out a theory of signs and meanings, distinguishes literal from figurative senses, offers practical rules for resolving difficult passages, and emphasizes the interpreter’s moral character and intentions. The work stresses humility, the primacy of the analogy of faith when judging interpretations, and the proper use of language and examples to instruct and edify the faithful.