1. John is monotheistic and believed the Shemah.
2. The three clauses in John 1:1 are to be taken as a whole sentence/thought.
3. Theos has a semantic range of possible definitions (e.g., divinely (1), God (1267), god (6), God's (27), God-fearing (1), godly (2), godly* (1), gods (8), Lord (1). in the NASB).
4. Theos with the article is normally, commonly, and usually to be taken as God--the Father.
5. Ho theos (ὁ θεος) in John 1:1b is the Father.
6. Because 1:1c is to be taken in the same sentence/thought as John 1:1a and b that narrows the semantic range of the θεος of clause c. It is predicating that the word was what the θεος of 1:1b was (the Word was God).
7. Since, 1:1b states that the Word and God were together (face to face) and because θεος lacks the article in 1:1c, then 1:1c cannot be saying that ὁ θεος and the Word are identical but are of the same substance, being, quality, or nature.
8. Therefore, The Word is God, but since John believed in the Shemah the Word was not God the Father. One God; two persons. John was at least a binitarian.