The main problem has to do with the uncritical, theologically naive, rigid, and overly confident manner in which Myers-Briggs categories are often employed in various church settings. Church people, particularly the clergy, are taking MBTI results as the gospel truth and blithely using them to make employment decisions, to establish leadership styles and regulate staff relationships, and to advise people about everything from marriage roles to prayer techniques.
…Why is it that so many in the Christian church, with its long and rich history of understanding persons in the most profound way possible -as living souls and as creatures made in the image of God should fall into the trap of allowing for a moment those theologically enduring and wondrously mysterious understandings to be displaced by something as superficial as a grid of sixteen suspiciously artificial personality types woven out of a questionable and all-too-fashionable theory of human temperament?
via Theology Today – Vol 49, No.3 – October 1992 – EDITORIAL – Myers-Briggs and Other Modern Astrologies.