By Sidney Louis Davis Jr.
A reader asks: Could you tell me the differences between God, Christ, and the Holy Spirit? They are three entities, right? I was reading about the only sin that is unforgivable, blasphemy against the Holy Spirit. Who and what is the Holy Spirit?
It’s a good question, and it has two parts. The first is about who these three are. The second is about what the unforgivable sin actually was. Both become clearer when we read them the way the first hearers did: inside Israel’s Scriptures.
Start where Scripture starts: One God
The foundation is the Shema: “Hear, O Israel: YHWH our God, YHWH is one” (Deuteronomy 6:4). Every writer of the Bible was a Jew who prayed those words, including Yeshua, who called it the first commandment (Mark 12:29), and Paul. When the Apostolic Writings say “God” (ho theos), they almost always mean the God of Israel, whom Yeshua called Father.
So the starting point is not “three entities.” It is one God, the God of Abraham, Isaac, and Jacob. The other two terms in your question describe how that one God acts.
“Christ” is a title, not a last name
“Christ” comes from the Greek Christos, which translates the Hebrew Mashiach, “anointed one.” In the Greek Septuagint, christos is used for Israel’s anointed kings, such as Saul (“YHWH’s anointed,” 1 Samuel 24:6). It is even used once for the Persian king Cyrus (Isaiah 45:1).
To call Yeshua “the Christ” is to say he is Israel’s Messiah: the anointed son of David promised in 2 Samuel 7 and Isaiah 11. Notice what he is anointed with:
“The Spirit of YHWH shall rest upon him.” (Isaiah 11:2)
“The Spirit of the Lord YHWH is upon me, because YHWH has anointed me.” (Isaiah 61:1; read by Yeshua in Luke 4:18)
Peter later says it the same way: “God anointed Yeshua of Nazareth with holy spirit and with power” (Acts 10:38). Here are God, Messiah, and Spirit in one sentence. God is the one who anoints. Yeshua is the Anointed. The Spirit is what he is anointed with.
The Apostolic Writings go further and present Yeshua as exalted to God’s right hand (Psalm 110:1). Paul can even rework the Shema itself: “for us there is one God, the Father … and one Lord, Yeshua the Messiah” (1 Corinthians 8:6). How to describe that relationship has been debated ever since. But it is worth knowing that the language of “three persons in one substance” is not found in the Bible. It was formulated by church councils in the fourth century (Nicaea, 325; Constantinople, 381), about three hundred years after Yeshua. Christians who hold that doctrine believe it summarizes the Scriptures. A careful reader should still keep the biblical text and the later creed distinct, and let the text speak first.
Who and what is the Holy Spirit?
In Hebrew the word is ruach. It means breath, wind, and spirit, all at once. The ruach of God is God’s own life-giving breath and active presence going out into the world:
- In creation: the ruach Elohim hovering over the waters (Genesis 1:2).
- In empowering leaders and prophets: the Spirit comes upon the seventy elders and they prophesy (Numbers 11:25), upon the judges, and upon David from the day he was anointed (1 Samuel 16:13).
- As God’s own holiness among His people: the exact phrase “holy spirit” appears only twice in the Tanakh. David prays, “Do not take Your holy spirit from me” (Psalm 51:11 [Heb. 51:13]). Isaiah says of Israel in the wilderness, “they rebelled and grieved His holy spirit” (Isaiah 63:10).
- As the promise of renewal: “I will put My Spirit within you and cause you to walk in My statutes” (Ezekiel 36:27). “I will pour out My Spirit on all flesh” (Joel 2:28 [Heb. 3:1]).
Jewish interpretation preserves this understanding. In the rabbinic literature, ruach ha-kodesh is above all the spirit of prophecy, the presence of God that speaks through Israel’s prophets. When the Spirit is poured out at Shavuot in Acts 2, Peter explains it entirely from Joel. It is Israel’s promised Spirit, coming first to and within Israel, in Jerusalem.
So the simplest answer is this. The Holy Spirit is not a separate god alongside God. It is God’s own holy presence and power at work: breathing, speaking through prophets, anointing, renewing. The Bible can speak of the Spirit personally: the Spirit can be grieved, can speak, and can lead. That is because when the Spirit acts, it is God Himself who is acting.
Then what is “blasphemy against the Holy Spirit”?
Context is everything here (Mark 3:20–30; Matthew 12:22–32; Luke 12:10).
Yeshua has been healing and casting out demons. Scribes come down from Jerusalem and give their explanation: he does it by Beelzebul, the prince of demons. Yeshua answers that a kingdom divided against itself cannot stand. In Matthew he says, “If I cast out demons by the Spirit of God, then the kingdom of God has come upon you” (12:28). Luke has “by the finger of God” (11:20). That phrase echoes Exodus 8:19, where even Pharaoh’s magicians admitted, “This is the finger of God.”
Then comes the warning. Mark explains exactly why Yeshua said it: “because they were saying, ‘He has an unclean spirit’” (3:30).
So the blasphemy was concrete. People looked directly at an unmistakable act of God’s Spirit, the liberation of a suffering person, and deliberately called it the work of Satan. They named God’s holiness as evil.
The Torah already knows this category. Numbers 15:30–31 distinguishes unintentional sin, which has a path of atonement, from sin committed “with a high hand.” That is open, defiant rejection, and the text says such a person “blasphemes YHWH” (et-YHWH hu megaddef). The sacrifices provide no atonement for this sin. Isaiah 63:10 describes the same posture: rebelling until God’s holy spirit is grieved. When Matthew says this sin will not be forgiven “in this age or in the age to come,” he is using the ordinary Jewish language of ha-olam ha-zeh and ha-olam ha-ba. The point is not a technicality. It is a stance that shuts the door on the very source of forgiveness.
A word to the worried reader
Many people read this passage and fear they have committed the unforgivable sin. In context, it is not a careless word, a doubt, or a past failure. It is a settled, knowing refusal that calls God’s saving work demonic. The person who is troubled about having grieved God is, by that very concern, showing the opposite posture. David, after his worst sin, still prayed, “Do not take Your holy spirit from me,” and was heard.
In short: there is one God, the God of Israel. Yeshua is His Anointed, the Messiah. The Holy Spirit is God’s own holy presence and power, the Spirit with which the Messiah was anointed and which God promised to pour out. To blaspheme that Spirit is to see God’s work clearly and deliberately call it evil.
© Sidney Louis Davis Jr. | AskTheTeacher.blog

Your voice matters. Iron sharpens iron. What insights or questions do you bring to the table?