What theological, ecclesiastical (church viewpoint), and evangelestic need to take place in the church as a deeper understanding of the historical development of Christian thinking?

What theological, ecclesiastical (church viewpoint), and evangelestic need to take place in the church as a deeper understanding of the historical development of Christian thinking?

What theological, ecclesiastical (church viewpoint), and evangelestic need to take place in the church as a deeper understanding of the historical development of Christian thinking?