As Brian Johnston explains, 8 different prepositions are used in the Holy Spirit's inspiration of the apostle Paul's writings, and this is no accident for each of them tells us something different about our relationship with Jesus: Through Christ (Our Mediator), On Christ (Our Foundation), In Christ (Our Inheritance), Under Christ (Our Lord), With Christ (Our Life), Unto Christ (Our Master And Judge), For Christ (Our Lover), Of Christ (Our Model). Also included is a bonus book "Faith with Focus" which looks at four "one things" that the Bible talks about.