According to the account in Acts, about 3,000 people were baptised following Peter’s sermon. For this reason, Pentecost is considered the birthday of the Church.

However, Saint Peter explained that the disciples were inspired by the Holy Spirit and preached the first Christian sermon, prompting the conversion and baptism of 3,000 people.

Peter began preaching after the first Pentecost, gaining more than 3,000 followers who were subsequently baptised, which is why Pentecost is often referred to as the birthday of the church.