Some religions teach the “trinity” – God the Father, God the Son, God the Holy Spirit. Some teachers refute that, I guess mainly because in that religion, some other doctrines and practices or rituals were and are debunked by a lot of people.
But what does the Scripture say about the Holy Spirit?
Let’s add references to Scripture here so we can all understand.

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Role of the Spirit – (John 14:16-31) NASB
From the above scriptural reference, we can find these two specific verses below, when our Lord Jesus Christ talked about (1) God The Father, (2) God the Son, and (3) the Holy Spirit – as spoken in one sentence.
(1) God the Father:
(2) God the Son:
(3) The Holy Spirit:
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The Baptism of Jesus – (Matthew 3:13-17) NASB
Here we can notice:
“The Spirit of God descending as a dove”, as John the baptist saw it, descending upon Jesus.
“The Spirit of truth” as described by Jesus :
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Disciples’ Relation to the World – (John 15:18-27) NASB
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The Holy Spirit Promised – (John 16:5-15) NASB
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The Unpardonable Sin – (Matthew 12:30-32) NASB
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“4 Hear, O Israel: The Lord our God is one Lord:”
The Greatest Commandment – (Deuteronomy 6:1-25) KJV
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