The Word or Logos is the expression or creative principle of God. ie. the Word is that which flows out of God to us.
Joh 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.
Joh 1:2 The same was in the beginning with God.
Joh 1:3 All things were made by him; and without him was not any thing made that was made.
Joh 1:4 In him was life; and the life was the light of men.
Joh 1:5 And the light shineth in darkness; and the darkness comprehended it not.
Joh 1:6 There was a man sent from God, whose name was John.
Joh 1:7 The same came for a witness, to bear witness of the Light, that all men through him might believe.
Joh 1:8 He was not that Light, but was sent to bear witness of that Light.
Joh 1:9 That was the true Light, which lighteth every man that cometh into the world.
Joh 1:10 He was in the world, and the world was made by him, and the world knew him not.
Joh 1:11 He came unto his own, and his own received him not.
Joh 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
Joh 1:13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
Joh 1:14 And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
Jesus was the expression of God born as a human being. Thus Jesus “the man” did not exist prior to being conceived in Mary, yet the Word did exist but was yet to be fully expressed through a human being.
Thus the Word is not a “separate person” from God as the Trinitarians teach but rather a “manifestation” of God to us.
Likewise it is with the Holy Spirit. Both the Holy Spirit and Jesus Christ proceed forth from the Father which is why Jesus would say…
Joh 14:15 If ye love me, keep my commandments.
Joh 14:16 And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever;
Joh 14:17 Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you.
Joh 14:18 I will not leave you comfortless: I will come to you.
Joh 14:19 Yet a little while, and the world seeth me no more; but ye see me: because I live, ye shall live also.
Joh 14:20 At that day ye shall know that I am in my Father, and ye in me, and I in you.
Joh 14:21 He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
Jesus Christ was divine, was God in the flesh, but was not a pre-existant separate person. He was the expression of the Father to us, subordinate to the Father for He came FROM the Father, the Father did not come from Him, nor did Jesus and the Father come from a common source.
God can only be fully perceived through the Word which is why we need the Word WRITTEN on our hearts.
Heb 10:16 This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them;
2Co 3:3 Forasmuch as ye are manifestly declared to be the epistle of Christ ministered by us, written not with ink, but with the Spirit of the living God; not in tables of stone, but in fleshy tables of the heart.
There is only ONE God.