Pray that the saints would realize the need to join prayer with fasting so that they may have the faith and authority to utter prayers of faith and authority (Acts 13:2-3; Acts 14:23).
Acts 13:2-3—And as they were ministering to the Lord and fasting, the Holy Spirit said, Set apart for Me now Barnabas and Saul for the work to which I have called them. Then, when they had fasted and prayed and laid their hands on them, they sent them away.
Acts 14:23—And when they had appointed elders for them in every church and had prayed with fastings, they committed them to the Lord into whom they had believed.
For further reading please refer to CWWN, vol. 22, “The Prayer Ministry of the Church,” pp. 203-204.