How do we know the Holy Spirit is active in the church today?

The activity of the Holy Spirit in the church is primarily observed through the preaching of the gospel and the transformation of lives. In Acts, the apostles were empowered by the Holy Spirit to articulate the mighty works of God, while the Spirit quickened listeners' hearts to believe. Today, the same Spirit operates through the faithful proclamation of the gospel, resulting in regeneration—a work that ensures believers are drawn to Christ (John 3:5-6). Furthermore, the Holy Spirit cultivates spiritual growth and empowers believers for ministry, making His presence evident through the fruits of the Spirit in a believer's life (Galatians 5:22-23).