Please take the time to read this all.
(All scripture verses all taken from the Authorized King James Verison of the Bible).
God is a trinity, the Godhead. Father, Son, and Holy Ghost, three in one. 1 John 5:7 states, "For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one."
To note first: In Genesis 1:1 says, "In the beginning God created the heaven and the earth." Do not like to use Hebrew (we have God's word in the English language the KJV), but the Hebrew for God in that verse is Elohim. That is the plural name of God. El is plural meaning more than one. This is true, because in Genesis 1:26, God says, "And God said, Let us make man in our image...." He said "Let us make," showing the trinity of God. It shows that Jesus took part in the creation of the universe (as John 1:1,3 teaches).
Begins here:
God's name is the LORD, not Jesus.
Isaiah 42:8 - "I am the LORD: that is my name: and my glory will I not give to another, neither my praise to graven images."
Exodus 15:3 - "The LORD is a man of war: the LORD is his name."
Amos 4:13 - "For, lo, he that formeth the mountains, and createth the wind, and declareth unto man what is his thought, that maketh the morning darkness, and treadeth upon the high places of the earth, The LORD, The God of hosts, is his name."
Amos 5:8 - "Seek him that maketh the seven stars and Orion, and turneth the shadow of death into the morning, and maketh the day dark with night: that calleth for the waters of the sea, and poureth them out upon the face of the earth: The LORD is his name:"
Amos 9:6 - "It is he that buildeth his stories in the heaven, and hath founded his troop in the earth; he that calleth for the waters of the sea, and poureth them out upon the face of the earth: The LORD is his name."
Jesus is the name of God's Son:
(Also see Matthew 1:21;Luke 1:31;Philippians 2:9-11)
Matthew 8:29 - "And, behold, they cried out, saying, What have we to do with thee, Jesus, thou Son of God? art thou come hither to torment us before the time?"
Mark 1:1 - "The beginning of the gospel of Jesus Christ, the Son of God;"
Mark 5:7 - "And cried with a loud voice, and said, What have I to do with thee, Jesus, thou Son of the most high God? I adjure thee by God, that thou torment me not." (There are other verses also)
The name of God's holy Spirit is the Holy Ghost:
John 14:26 - "But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you."
Matthew 1:20 - "[F]or that which is conceived in her is of the Holy Ghost."
Luke 3:22 - "And the Holy Ghost descended in a bodily shape like a dove upon him..." (there are other verses also.)
Here are some things to note:
Luke 12:8 says, "Also I say unto you, Whosoever shall confess me before men, him shall the Son of man also confess before the angels of God:" (Jesus says, "the angels of God." He does not say, "the angels of the Son of God," or "the angels of mine (my angels)," et al.)
John 14:26 - "But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you."
Here Jesus says, that God will send the Holy Ghost in his (Jesus') name. This verse shows that they are three distinct persons.
Verses speaking of Jesus' baptism:
Matthew 3:16-17
"16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased."
Luke 3:21-22
"21 Now when all the people were baptized, it came to pass, that Jesus also being baptized, and praying, the heaven was opened,
22 And the Holy Ghost descended in a bodily shape like a dove upon him, and a voice came from heaven, which said, Thou art my beloved Son; in thee I am well pleased."
Mark 1:10-11
"10 And straightway coming up out of the water, he saw the heavens opened, and the Spirit like a dove descending upon him:
11 And there came a voice from heaven, saying, Thou art my beloved Son, in whom I am well pleased."
These verses show the the trinity of God (plainly shows that they are three distinct persons). Jesus was on the earth coming up from the water. As the heavens open, the Holy Ghost comes upon him like a dove. Then God, from heaven, speaks. All three there at the same time. Jesus, the Holy Ghost, and God.
Some questions to think about (ponder):
1-
See Mark 13:32, "But of that day and that hour knoweth no man, no, not the angels which are in heaven, neither the Son, but the Father."
Note this verse says, paraphrasing, "no man knows the hour, the angels do not know the hour, and Jesus does not know the hour." None of those know the hour, but God knows the hour.
If "Oneness" is true, then how is it that God knows the hour, yet Jesus does not know it?
2-
See Matthew 12:31,32 - "Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men.
32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come."
Mark 3:28-29, says, "Verily I say unto you, All sins shall be forgiven unto the sons of men, and blasphemies wherewith soever they shall blaspheme:
29 But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation."
Luke 12:10 says, "And whosoever shall speak a word against the Son of man, it shall be forgiven him: but unto him that blasphemeth against the Holy Ghost it shall not be forgiven."
If someone speaks against the Son of man (Jesus), he shall be forgiven. If someone speaks against the Holy Ghost, he shall not be forgiven.
If "Oneness" is true, then how is it that if someone blasphems Jesus he can be forgiven, but if he blasphems the Holy Ghost he cannot be forgiven?
If they were one (and not three distinct persons in one), then wouldn't someone not be forgiven if they blasphemed Jesus' name (if they were one)? Or if they were one, then shouldn't he be forgiven if he blasphems the Holy Ghost?
3-
John 14:28 - "Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I."
Jesus says here, that God is greater than him. If "Oneness" is true, then how is God greater than him if they are supposed to be the same?
Conclusion: The Trinity of God is true, and Oneness is a false doctrine.
