Allow me to pick a starting point by using the words of Arthur Wallis in his “In the day of Thy Power”, published in 1956.There was never a day in which the term “revival” needed to be more carefully defined. It has come to be used in relation to spiritual things so widely and so loosely that many are perplexed to know what it does mean. To some prejudiced or misinformed people the term is synonymous with excessive emotionalism and mass hysteria. It is to be hoped that the following pages will be a sufficient answer to such a slander on the work of the Holy Spirit.Others use the word to describe a successful evangelistic mission. When they tell us that their church is “having a revival”, we understand them to mean that a gospel campaign is being conducted there. This use is possibly a relic of days when the Spirit was working widely, and one had only to arrange such a mission to witness a quickening amongst the believers and an ingathering of the lost. Today it is otherwise, but in any case to use the term thus is misleading. We cannot go to the Bible to see how the word “revival” is used, for it is not found there, although it contains many examples and types of revival, and unfolds all its principles. The nearest Scriptural equivalents are “revive” (or quicken), and “reviving”, but these may be applied to individual quickening, and are not always synonymous with what has come to be called, by common consent down the centuries, “religious revival”. It might be well if those who wish to describe what is simply a quickening work amongst believers would use those Scriptural expressions, “revive” and “reviving”, and distinguish them from “revival”, which includes and yet exceeds them. Revival is more than big meetings. It is more than religious excitement. It is more than the quickening of the saints, or their being filled with the Holy Spirit. It is more than a great ingathering of souls. One may have any one of these without revival, and yet revival includes them all. There is a wealth of difference between missions or campaigns at their best and genuine revival. In the former man takes the initiative, it may be with the prompting of the Spirit; in the latter the initiative is God’s. With the one the organization is human; with the other it is divine. There is no intention here of disparaging the work of missions, or of denying that God has owned them to the conversion of multitudes, but it must be made clear that they do not constitute revival. Missions may be a part of the continuous programme of evangelism which is the task of the church, but revival is a thing of special times and seasons. Revival may of course break out during a mission, but when it does so certain features will appear which are peculiar to revival, and certain features will disappear which are characteristic of missions. However, while revival tarries, the normal evangelism of the church must continue, but let us keep the distinction clear.Lars Widerberg(The first six chapters of Wallis text may be obtained on request – Intercessors.Network@telia.com)