“And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit gave them utterance.” (Acts 2:4)
“The Holy Ghost fell on all them which heard the word… for they heard them speak with tongues.” (Acts 10:44-46)
“They were baptized in the name of the Lord Jesus and…The Holy Spirit came on them, and they began speaking in tongues and prophesying.” (Acts 19:5-6)
How Do You Know That You Have The Holy Spirit?
[WARNING: The devil and his demons often imitate speaking in tongues.]