According to Acts 2:4, speaking in tongues was prompted and provided by what?

In Acts 2:4, the event of speaking in tongues occurred when the Holy Spirit came upon the apostles during Pentecost. This moment was marked by the fulfillment of Jesus' promise to send the Holy Spirit, which emphasizes that the ability to speak in tongues was a divine act rather than a human initiative or personal choice. The phrase "the unction of the Holy Spirit" refers to the empowerment and enablement provided by the Holy Spirit, signifying that the apostles did not initiate this experience on their own. Instead, they were moved by the Holy Spirit to speak in tongues, illustrating that the phenomenon was out of the control of the individuals involved and inherently linked to the workings of God through the Holy Spirit. This reinforces the belief in the supernatural role of the Holy Spirit in the early church and its manifestations.