No. Trinitarianism does not hold the Son and the Father are the same person.
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False
John 1:1–3 In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things came into being through Him, and apart from Him nothing came into being that has come into being.
Col 1:15–17 He is the image of the invisible God, the firstborn of all creation. For by Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things have been created through Him and for Him. He is before all things, and in Him all things hold together.
Heb 1:8–12 But of the Son He says, “Your throne, O God, is forever and ever, And the righteous scepter is the scepter of His kingdom. “You have loved righteousness and hated lawlessness; Therefore God, Your God, has anointed You With the oil of gladness above Your companions.” And, “You, Lord, in the beginning laid the foundation of the earth, And the heavens are the works of Your hands; They will perish, but You remain; And they all will become old like a garment, And like a mantle You will roll them up; Like a garment they will also be changed. But You are the same, And Your years will not come to an end.”
John 8:58 Jesus said to them, “Truly, truly, I say to you, before Abraham was born, I am.”
Hebrews 13:8 (NASB 95) — 8 Jesus Christ is the same yesterday and today and forever.
John 1:15 John testified about Him and cried out, saying, “This was He of whom I said, ‘He who comes after me has a higher rank than I, for He existed before me.’ ”
Phil 2:6–7 who, although He existed in the form of God, did not regard equality with God a thing to be grasped, but emptied Himself, taking the form of a bond-servant, and being made in the likeness of men.
1 Cor 10:4 and all drank the same spiritual drink, for they were drinking from a spiritual rock which followed them; and the rock was Christ.
1 John 1:1–2 What was from the beginning, what we have heard, what we have seen with our eyes, what we have looked at and touched with our hands, concerning the Word of Life— and the life was manifested, and we have seen and testify and proclaim to you the eternal life, which was with the Father and was manifested to us—
False See verses above and
John 17:5 (NASB 95) — 5 Now, Father, glorify Me together with Yourself, with the glory which I had with You before the world was.
Hebrews 1:2–3 (NASB 95) — 2 in these last days has spoken to us in His Son, whom He appointed heir of all things,
through whom also He made the world. 3 And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high,
Phil 2:5–11 Have this attitude in yourselves which was also in Christ Jesus, who, although He existed in the form of God, did not regard equality with God a thing to be grasped, but emptied Himself, taking the form of a bond-servant, and being made in the likeness of men. Being found in appearance as a man, He humbled Himself by becoming obedient to the point of death, even death on a cross. For this reason also, God highly exalted Him, and bestowed on Him the name which is above every name, so that at the name of Jesus every knee will bow, of those who are in heaven and on earth and under the earth, and that every tongue will confess that Jesus Christ is Lord, to the glory of God the Father.
Heb 1:10–12 And, “You, Lord, in the beginning laid the foundation of the earth, And the heavens are the works of Your hands; They will perish, but You remain; And they all will become old like a garment, And like a mantle You will roll them up; Like a garment they will also be changed. But You are the same, And Your years will not come to an end.”
God's spoken word is not mentioned
John 1:3 All things came into being through Him, and apart from Him nothing came into being that has come into being. 4 In Him was life, and the life was the Light of men.
John 1:10 (NASB 95) — 10 He was in the world, and the world was made through Him, and the world did not know Him.
1 Cor 8:6 yet for us there is but one God, the Father, from whom are all things and we exist for Him; and one Lord, Jesus Christ, by whom are all things, and we exist through Him.
Phil 2:5–11 Have this attitude in yourselves which was also in Christ Jesus, who, although He existed in the form of God, did not regard equality with God a thing to be grasped, but emptied Himself, taking the form of a bond-servant, and being made in the likeness of men. Being found in appearance as a man, He humbled Himself by becoming obedient to the point of death, even death on a cross. For this reason also, God highly exalted Him, and bestowed on Him the name which is above every name, so that at the name of Jesus every knee will bow, of those who are in heaven and on earth and under the earth, and that every tongue will confess that Jesus Christ is Lord, to the glory of God the Father.