The Blessed Trinity and Our Christian Vocation is about the mystery by which there is one God in three Persons. This book breaks down the mysteries of God and the attributes associated with each of the Persons to help students understand its implications for living the Christian life.

The Didache Semester Series is a series of high school textbooks, teacher's manuals, and student workbooks published by Midwest Theological Forum. Each title spans one academic semester. These titles have been developed according to the 2007 curriculum framework from the USCCB Subcommittee on the Catechism to assist in the publication of religious education textbooks for Catholic high schools.

This book, The Blessed Trinity and Our Christian Vocation, corresponds to
Book II: Who Is Jesus Christ? in the curriculum framework.

This textbook is published with ecclesiastical approval from the Archdiocese of Chicago, and it has been granted conformity with the Catechism of the Catholic Church by the USCCB Subcommittee on the Catechism.