For as I see it, God has exhibited us Apostles as the last of all, like people sentenced to death, since we have become a spectacle to the world, to angels and men alike. We are fools on Christ’s account, but you are wise in Christ; we are weak, but you are strong; you are held in honor, but we in disrepute. To this very hour we go hungry and thirsty, we are poorly clad and roughly treated, we wander about homeless and we toil, working with our own hands. When ridiculed, we bless; when persecuted, we endure; when slandered, we respond gently. We have become like the world’s rubbish, the scum of all, to this very moment. (1 Cor 4:6b-15)
https://bible.usccb.org/bible/readings/090322.cfm
With all the difficulties of his ministry, Paul would not have changed places with anyone. Saint Gregory (540-605) promoted a renewal of pastoral ministry in the church.