The obstacle he had to overcome, in the case of the Corinthians may well have been the distrust they had for those who went about making profit from their message.
Aquila & Priscilla, Silas And Timothy, Go To The Gentiles, Tentmaker, Aquila And Priscilla
Paul began his third mission by visiting for the third time the churches established on his first missionary journey. His ultimate destination was Ephesus, where he had left Priscilla and Aquila. Before Paul’s return, the two encountered Apollos....
Ephesus, Apollos, Baptism Of John, Aquila And Priscilla