St. Zephyrinus
Zephyrinus · ~199 – ~217
Led the Church for nearly two decades but was criticized by opponents for being too simple and easily influenced.
Zephyrinus served as pope for about eighteen years, one of the longer early pontificates. His main theological challenge was the debate over how to describe the relationship between the Father and the Son. Hippolytus, the learned Roman priest who would later become an antipope, considered Zephyrinus theologically unsophisticated and accused him of being manipulated by his deacon Callixtus. Whether that charge was fair is hard to say. What Zephyrinus actually did was refuse to endorse either the modalist or the subordinationist position, holding a cautious middle ground that later theology would vindicate.
The Wisdom of Waiting
Hippolytus thought Zephyrinus was a simpleton. But refusing to pick sides in a theological debate that hadn't been properly worked out isn't stupidity. It's patience. The trinitarian question would take another century and several councils to resolve. Zephyrinus was smart enough not to jump ahead.