First, a note regarding the word "Trinity". You will not find the word trinity in the Bible. It is a word that abbreviates a concept. That concept being that God, the Son, and the Holy Spirit are three distinct personalities within a single Godhead. This is a "compound unity" which, in Hebrew, is the word "echad". I explain this and greater detail regarding the trinity in my study link below if you wish more detail on this question. http://tinyurl.com/phllk
Here are specific scriptures in both the Tonakh and the New Testament. Quotes are by God, Jesus, disciples and apostles.
A Child is to be born as a man who will be the Mighty God.
Isaiah 9:6
For unto us a Child is born, Unto us a Son is given; And the government will be upon His shoulder. And His name will be called Wonderful, Counselor, Mighty God, Everlasting Father, Prince of Peace.
Jehovah says that He and the coming Redeemer are eternal.
Isaiah 44:6
"Thus says YHWH, the King of Israel, And his Redeemer [Yeshua], the YHWH of hosts: ‘I am the First and I am the Last; Besides Me there is no God.'"
Jesus confirmed the above as well as His being the Almighty.
Revelation 1:8
Jesus said, “I am the Alpha and the Omega, the Beginning and the End,” says the Lord, “who is and who was and who is to come, the Almighty.”
Again, Who is the Redeemer? Who is the Savior? YHWH.
Isaiah 49:26
"All flesh shall know That I, YHWH, am your Savior, And your Redeemer, the Mighty One of Jacob."
Before He was born, Jesus identified the trinity.
Isaiah 48:16
"Come near to Me, hear this: I have not spoken in secret from the beginning; From the time that it was, I was there. And now the Lord GOD and His SPIRIT Have sent ME."
Three distinct personalities are seen in Jesus' baptism.
Matthew 3:16
When He had been baptized, Jesus came up immediately from the water; and behold, the heavens were opened to Him, and He saw the Spirit of God descending like a dove and alighting upon Him. And suddenly a voice came from heaven, saying, "This is My beloved Son, in whom I am well pleased."
Jews sought to stone Jesus for claiming to be the eternal.
John 8
“Your father Abraham rejoiced to see My day, and he saw it and was glad.”
Then the Jews said to Him, “You are not yet fifty years old, and have You seen Abraham?”
Jesus said to them, “Most assuredly, I say to you, before Abraham was, I AM.”
Then they took up stones to throw at Him; but Jesus hid Himself and went out of the temple, going through the midst of them, and so passed by.
Jesus says that He and the Father are ONE (heis in Greek which means literally the number 1) Jews seek to stone Him for claiming to be God incarnate.
John 10
"I and My Father are one."
Then the Jews took up stones again to stone Him.
Jesus answered them, “Many good works I have shown you from My Father. For which of those works do you stone Me?”
The Jews answered Him, saying, "For a good work we do not stone You, but for blasphemy, and because You, being a Man, make Yourself God."
Jesus does not rebuke Thomas for calling Him God, but rather promises a blessing to those who would believe later.
John 20:28
And Thomas answered and said to Jesus, "My Lord and my God!"
Jesus said to him, "Thomas, because you have seen Me, you have believed. Blessed are those who have not seen and yet have believed."
Paul confirms that Jesus is God.
Titus 2:11-14
For the grace of God that brings salvation has appeared to all men... looking for the blessed hope and glorious appearing of our great God and Savior Jesus Christ, who gave Himself for us, that He might redeem us from every lawless deed and purify for Himself His own special people, zealous for good works.
Philippians 2:5-7
Let this mind be in you, which was also in Christ Jesus: who, being in the form of God, thought it not robbery to be equal with God: but made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men.
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Who rose Jesus from the dead? Without the concept of a trinity, the following verses would be contradictions.
God:
God raised him up, loosing the pangs of death, because it was not possible for him to be held by it. - Acts 2:24
Jesus:
Jesus said, “Destroy this temple, and in three days I will raise it up.” - John 2:19
“I lay down my life that I may take it up again" - John 10:17
Holy Spirit:
But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you. - Romans 8:11
