The Baptism of the Holy Spirit

What does the baptism of the Holy Spirit have to do with us today? It was a unique event in the history of redemption, which means that if we try to repeat it, we will not have the real thing but only mimic it. Unfortunately, that is what the vast majority of people who claim to speak in tongues do. We need to have a good theological understanding of the baptism of the Spirit and tongues in order not to be deceived.