The grammatical understanding of Genesis 1:1 is simple, and the most fundamental principle for learning any language is to follow the ease of grammar.
Let's look at the verses:
Gen 1:1 In the beginning God created the heaven and the earth.
Gen 1:2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
Gen 1:3 And God said, 'Let there be light': and there was light.
Now this is this is the interpretation of some Trinitarians about it. They claim3 personalities of God are mentioned:
In Gen1:1 God the Father is mentioned.
In Gen1:2 God the Spirit is mentioned.
In Gen1:3 God the Word is mentioned.
Now here are the difficulties about their interpretation:
1) Verse Gen 1:2 is one of the translations, not the only one! In the Samaritan bible, the term "the wind of God" is used in place of "the spirit ofGod"! And if you were sincere you would realize that the "wind of God" or“breath of God” is a more correct translation of the Hebrew word"ruach"!
Everyone knows that Genesis is about creation, and is about the heavens and the earth being created and this involves earth, water and winds more than it would involve "spirit"! Why would Genesis say "in the beginning God.."? If trinitarians try to force this interpretation they have to accept those verses say God has a beginning instead of Creation has a beginning. Is God not supposed to be eternal?
2) Another fallacy is made by telling that Gen 1:3 is indicative of the word of God(Jesus?)! Where does it say so?
If you read the verse with an open mind you will see this is a clear interpolation. It says "Then God said, "Let there be light"; and there was light." Why would they translate the words "God said" into "word"?! It does not say so in the Hebrew nor in the English translation, does it?
Compare with Gen 1:1 He created the heaven and the earth without mentioning His word..would they agree then that His word didn't exist then?
Or did He create without His word in Gen 1:1?
The only clear thing that this verse shows is that God and His word are undevidable and surely this refutes the Trinitarian view of distinct persons in a trinity.