The study of Pneumatology, or The Doctrine of the Holy Spirit, is especially important these days as many professing Christians have an incorrect understanding of the works of the third person of the Trinity. Not including the works of the Holy Spirit prior to and including Christ’s incarnation, He also is intimately involved in the salvation and life of believers. For instance, in 2 Pet. 1:21 we learn that He inspired all Sacred Scripture. All believers come to Christ because they are first regenerated by the Holy Spirit (1 Pet. 1:12; Titus 3:5; Rom. 8:11). All believers are baptized into the Holy Spirit (1 Cor. 12:13; Rom. 6:3-4; Matt. 3:11; Mark 1:8; Luke 3:16; John 1:33; Acts 1:5), and from this we learn of His permanent indwelling of all genuine believers. In the lives of all genuine believers, before they are saved and afterwards as they are drawn into walks of repentance, the Holy Spirit convicts (John 16:8). He sanctifies all believers (2 Thess. 2:13). He is the “helper” sent by Christ to all believers (John 14:16; 1 John 2:1; John 14:26; John 15:26; John 16:1; Rom. 8:26). Lastly, we come to the filling of the Holy Spirit. All believers are commanded to be filled with the Holy Spirit, and it is vital that Christians understand what this means.