Apollos had everything you could possibly want to be effective: he had education, talent, skill and experience. But until Apollos had the Holy Spirit, his ministry was not effective.
Embedded so deeply you would just about miss it, Paul meets Phoebe in Cenchrea while making a vow.
When Paul was at his lowest, flat broke, homeless, utterly alone, and his spirits fallen, God was there to provide in six significant ways.
Usually we don’t think of apathy and disinterest as opposition, but it is, perhaps the strongest kind. In fact, it nearly undid Paul.