St. Paul expected his hearers to be moved. He so believed in his preaching that he knew it was ‘the power of God unto salvation.’ This expectation is a very real part of the presentation of the gospel. It is a form of faith. A mere preaching which is not accompanied by the expectation of faith, is not a true preaching of the gospel, because faith is a part of the gospel.
–Roland Allen Missionary Methods: St. Paul’s or Ours (Grand Rapids: Eerdmans, 1962), p.74, also quoted by yours truly in this morning’s sermon