This was to the many Disciples that were following Jesus at that time.  

There are key points made in these passages that all believers need to take into consideration as we follow Christ and as we serve in ministry:

* Have more faith

* Ask the Lord to help us overcome our unbelief 

* Believe it will be done!

* Check ourselves regularly in prayer and fasting for the Lord to strengthen us spiritually so we will be more effective for the Power and Authority of Jesus Christ to work through us to heal people

Matthew 17 - Mark 9 - Luke 9 - Scripture Prayed Out