Since 1990, the Serve in the Spirit mobile school has progressed and become World Harvest Institute of two training schools now. (1) On-the-job Ministry School for people to test out and develop their vocational callings. (2) The intensive Apostolic Program will be renamed as Apostolic School for participants to catch the fire of Holy Spirit; they will attend and observe our Deep Soaking, Kingdom Works, and Loving Fellowship.

The Pastoral School provides on-the-job mentoring for people who have received a vocational calling for spiritual ministry, training them to build a church on spiritual gifts and to operate in the manifestation of the Holy Spirit to accomplish the Great Commission. The school equips you to form five lifetime practices (deep soaking, kingdom works, loving fellowship, purpose alignment, and overflowing increase), to develop a section of many cells, to raise a team of soul-winning disciples, and to translate your ministry calling into a productive and dynamic spiritual vocation. This training program also equips you to become skilful in winning people, ministering healing, handling deliverance, restoring broken lives, mentoring disciples, and living on God’s provision.

Apostolic School is planning to run a two-week program of selections from Glory Encounter 511, Spiritual Warfront 512, and Apostolic Leadership 513. New topics added are: Revival Whirlwind, Refining Fire, River of Life, Rain for Harvest, First Love Keeps Revival, First Works Perpetuates Revival, Inherit His Kingdom, Operate His Power, Behold His Glory, Sacrifice of Praise, Heaven Impacts Earth, The One Purpose, Sozo & Wellness, and Throne of Grace.