By a review of the passages in Acts that deal with the baptism with the Holy Spirit, speaking in tongues is most consistently mentioned as the evidence of the baptism with the Holy Spirit.

• A. prophecy
• B. miracles
• C. baptism with water
• D. speaking in tongues

Answer: (D)

The main idea here is that baptism with the Holy Spirit is shown by a recognizable outward sign that accompanies the experience. In Acts, the clearest and most repeated demonstration of Spirit baptism is believers speaking in tongues as the Spirit enables them. At Pentecost, the Spirit fills the believers and they begin to speak in other tongues, a visible sign that the Spirit has come upon them. When Peter preaches to the Gentiles through Cornelius, the gift of the Spirit is confirmed for them as they speak in tongues and glorify God, indicating the Spirit’s reach beyond the Jewish community. In the Ephesian account, believers receive the Spirit after Paul lays hands on them, and they respond by speaking in tongues and prophesying. These episodes together show a pattern: tongues function as the outward evidence the Spirit has been poured out. While miracles and prophecy occur in the book of Acts, the speaking in tongues is the most consistently described sign tied to Spirit baptism across the passages, distinguishing the experience from water baptism, which is a separate rite.