Acts 2:1-4

When the day of Pentecost came, all the believers gathered in one place. Suddenly a sound came from heaven. It was like a strong wind blowing. It filled the whole house where they were sitting. They saw something that looked like fire in the shape of tongues. The flames separated and came to rest on each of them. All of them were filled with the Holy Spirit. They began to speak in languages they had not known before. The Spirit gave them the ability to do this.