From CIA to Pastor?

How could Stephen Grant go from working for the CIA to becoming a pastor?

Note this description from the CIA website: "Operations officers comprise only a small portion of the whole CIA workforce. Being an operations officer demands a forceful personality, keen intellectual ability, toughness of mind, and a high degree of personal integrity, courage, and love of country."

Sounds like what's needed in a pastor - of course, adding in faith and compassion.

That's Stephen Grant from Ray Keating's Warrior Monk: A Pastor Stephen Grant Novel.