Acts 2:4--"And they were all filled with the Holy Ghost." Eph. 5:18--"Be filled with the Spirit." The filling differs somewhat from the indwelling. We may speak of the baptism of the Spirit as that initial act of the Spirit by which, at the moment of our regeneration, we are baptized by the Spirit into the body of Christ; the Spirit then comes and takes up His dwelling within the believer. The filling with the Spirit, however, is not confined to one experience, or to any one point of time exclusively; it may be repeated times without number. There is one baptism, but many infillings with the Spirit. The experience of the apostles in the Acts bears witness to the fact that they were repeatedly filled with the Spirit. Whenever a new emergency arose they sought a fresh infilling with the Spirit (cf. Acts 2:4 with 4:31 showing that the apostles who were filled on the day of Pentecost were again filled a few days after). There is a difference between possessing the Spirit, and being filled with the Spirit. All Christians have the first; not all have the second, although all may have. Eph. 4:30 speaks of believers as being "sealed," whereas 5:18 commands those same believers to "be filled (to be being filled again and again) with the Spirit." Both the baptism and the infilling may take place at once. There need be no long wilderness experience in the life of the believer. It is the will of God that we should be filled (or, if you prefer the expression, "be baptized") with the Spirit at the moment of conversion, and remain filled all the time. Whenever we are called upon for any special service, or for any new emergency, we should seek a fresh infilling of the Spirit, either for life or service, as the case may be. The Holy Spirit seeks--so we learn from the story of the Acts--for men who are not merely possessed by but also filled with the Spirit, for service (6:3, 5; 9:17; 11:24). Possession touches assurance; infilling, service. e) The Holy Spirit Empowers the Believer for Life and Service.