First, we must admit that we were silly ever to think that any evangelistic technique, however skillful, could of itself guarantee conversions; second, we must recognize that, because man's heart is impervious to the word of God, it is no cause for surprise if at any time our evangelism fails to result in conversions; third, we must remember that the terms of our calling are that we should be faithful, not that we should be successful; fourth, we must learn to rest all our hopes of fruit in evangelism upon the omnipotent grace of God.