Perhaps the greatest and most obvious sign that a revival is taking place is the great increase in the number of people committing their lives to Jesus Christ. If this is not happening then revival is not happening. Something else wonderful may be occurring such as renewal of the church. Revival, however, has not yet arrived. Revival may follow church renewal and certainly in a revival many churches are renewed.
It is estimated that in the Welsh revival at the turn of the 20th century about 10% of the population or 100,000 people became devout followers of Jesus Christ and turned their whole society around. Hardened hearts were softened, ignorant unbelievers were enlightened, legalistic churchgoers were overwhelmed with grace, and powerless ministers were enabled to preach the gospel with great conviction. Thousands came streaming into the small churches all around the country.
Revival often results in a tremendous increase in congregations and new outreach structures. Churches are filled and new churches are formed. Again and again when people are introduced or reintroduced to the love and power of God they return to the church of their tradition or childhood. Even churches that are not actively part of the revival movement become a part because of these returning members. Their congregations are also filled to overflowing. Some members, however, are rejected by their churches, which choose not to be a part of the revival. These members then either choose a more accommodating church or even form new churches. Whatever the method, there is an increase in church growth and parachurch (mission) growth.