In the Power and the Glory why had Mr Tench stayed in the little town for such a long time?

In "The Power and the Glory," Mr. Tench stays in the little town largely due to his sense of isolation and his inability to leave. He feels trapped by his own circumstances, including his lack of ambition and his unfulfilled life. Additionally, he has developed a sort of comfort in the routine and familiarity of the town, despite its oppressive atmosphere under the prohibition of priests. His presence reflects the broader themes of moral ambiguity and the human condition explored in the novel.