Jesus promised the Holy Spirit as follows:
“If you love me, you will keep my commandments. And I will ask the Father, and he will give you another Advocate to be with you always, the Spirit of truth, which the world cannot accept, because it neither sees nor knows it. But you know it, because it remains with you, and will be in you.” (John 14:15-17)
“I have told you this while I am with you. The Advocate, the holy Spirit that the Father will send in my name—he will teach you everything and remind you of all that [I] told you.” (John 14:25-26)
The Christian Church was founded on the day the Holy Spirit descended over the apostles. The Acts of the Apostles, often referred to simply as Acts, is the fifth book of the New Testament. It tells of the founding of the Christian Church, the Early Church, and the spread of its message to the Roman Empire.
People of different regions and idioms could hear the Apostle Peter in their own languages. The Holy Spirit has manifested Himself in Tongues since the founding of the Church. Refer to the Charisms Tongues and Interpretation of Tongues.
The Holy Spirit has been the most active and the least known member of the Holy Trinity since the founding of Christianity. He was very powerful in the development of the Early Church and will exert even more power in The Church of the Last Days. The future Pope Peter II will lead this Church centered in the Philippines.