John 15:26--"The Spirit of truth ... shall testify of me." Acts 5:32--"And we are his witnesses of these things; and so is also the Holy Ghost." It is the work of the Holy Spirit to constantly bear witness of Christ and His finished work to the world of sinful and sinning men. This He does largely, although hardly exclusively, through the testimony of believers to the saving power and work of Christ: "Ye also shall bear witness" (John 15:27). 2. THE WORK OF THE SPIRIT IN RELATION TO THE BELIEVER. a) He Regenerates the Believer. John 3:3-5--"Born of ... the Spirit." Tit. 3:5--"The... renewing of the Holy Ghost." Sonship, and membership in the kingdom of God, come only through the regenerating of the Holy Spirit. "It is the Spirit that quickeneth." Just as Jesus was begotten of the Holy Ghost, so must every child of God who is to be an heir to the kingdom. b) The Spirit Indwells the Believer. 1 Cor. 6:19--"Your body is the temple of the Holy Ghost which is in you." Also 3:16; Rom. 8:9. Every believer, no matter how weak and imperfect he may be, or how immature his Christian experience, still has the indwelling of the Spirit. Acts 19:2 does not contradict this statement. Evidently some miraculous outpouring of the Spirit is intended there, the which followed the prayer and laying on of the hands of the apostles. "Now if any man have not the Spirit of Christ, he is none of his." "No man can say that Jesus is the Lord, but by the Holy Ghost" (Rom. 8:9; 1 Cor. 12:3). c) The Spirit Seals the Believer with Assurance of Salvation. Eph. 1:13, 14--"In whom also after that ye believed, ye were sealed with that Holy Spirit of promise; which is the earnest of our inheritance." Also 4:30--"Sealed unto the day of redemption." This sealing stands for two things: ownership and likeness (2 Tim. 2:19-21). The Holy Spirit is "the Spirit of adoption" which God puts into our hearts, by which we know that we are His children. The Spirit bears witness to this great truth (Gal. 4:6; Rom. 8:14, 16). This sealing has to do with the heart and the conscience--satisfying both as to the settlement of the sin and sonship question. d) The Holy Spirit Infills the Believer.