“I will pour out My Spirit on all flesh” (v17). The waiting believers (men and women) were filled with the Spirit and began to praise God in “other tongues” (v4). Each person listening, Jews from other nations who spoke Arabic, Italian, Persian, etc, heard and understood (v11). Jesus’ gift of the Spirit meant that believers were empowered to cross barriers of language and culture to speak of God’s salvation in Christ, with the promise that those listening might repent and receive the same Spirit.
“Everyone who calls on the name of the Lord will be saved” (v21). At Pentecost, God’s Spirit was poured out so that people from every culture could become one family by faith in Jesus.