filled with the Holy Ghost
2:4 filled with the Holy Ghost. Although the Spirit’s baptism and filling occurred simultaneously in this initial manifestation of His power, the two are separate ministries. All believers are baptized by the Holy Spirit into the body of Christ once for all at the time of conversion (I Corinthians 12:13). They can, however, be filled with the Spirit on more than one occasion and, in fact, are exhorted to “be [continually being] filled with the Spirit” (literal reading of Ephesians 5:18). Note, for example, the repeated fillings recorded in Acts 4:8,31; 9:17; 13:9.