A study of pneumatology (the distinctive Pentecostal doctrine of the Holy Spirit, focusing on the divinity and personality of the Spirit and the work of the Spirit in applying to believers the benefits of Christ’s work: sanctification by the Spirit); ecclesiology (the doctrine of the church, including its definition, mission and purpose, organization, and ordinances); angelology (the doctrine of angels—their creation, nature, fall, and work); and eschatology (the doctrine of the last things, including the Second Coming, resurrections, judgments, and final state).