Objection: The Bible Does Not Instruct Us to Hold Healing Crusades
Given that some people’s ministry offices are “gifts of healings” and “miracles,” where are they supposed to exercise those gifts? If the objectors had their way, it would be in private homes away from the public. But that didn’t work for Jesus because the crowds were too big. The crowds were too big for Peter, too, when he ministered on the street in Jerusalem. Jesus ministered publicly. God wants us to declare His works to the heathen, and one way to do that is through healing rallies.
The Bible does not tell us to hold evangelistic crusades of any variety, but does that make them wrong? Is it a bad thing to try to reach as many sinners as possible in the shortest amount of time? If not, why is it wrong to want to reach the most sick people in the shortest amount of time?
The Bible never tells us to hand out printed tracts either. Am I in sin because I’ve handed out tens of thousands of them and led people to Jesus that way?
The Bible does not tell us to have missions conferences either. Is it a sin to have one?
What matters is that the Bible does instruct us to GO and tell EVERYONE the gospel. The means by which this must be done is not specified, and the best method may vary greatly from place to place. In countries where open evangelism is illegal and subject to capital punishment, different strategies have to be employed than might be used in free countries. Some places are quite welcoming to door-to-door evangelism, but I used to live somewhere where people hated you for interrupting their time at home and invading their privacy. So it pays to listen to the Holy Spirit and find out what His plan is.
You can read The Light Is Green for an elaboration on this, but when it comes to evangelism, the general rule of thumb should be that God has ALERADY told you to GO, so you GO unless He specifically stops you and redirects you elsewhere.