In this verse the Word is expressly affirmed to be God. The Word existed already “in the beginning” (a clear reference to the opening words of the Bible), which is a way of denoting the eternity that is unique to God. John states clearly, “the Word was God.” Some have observed that the word translated “God” here has no definite article, and argued on this basis that it means “a god” rather than “God.” This is a misunderstanding; the article is omitted because of the word order in the Greek sentence (the predicate “God” has been placed first for emphasis). The New Testament never endorses the idea of “a god,” an expression that implies polytheism and is in sharp conflict with the consistent monotheism of the Bible. In the New Testament, the Greek word for “God” occurs often without the definite article, depending on the requirements of Greek grammar.
That “the Word was with God,” indicates a distinction of Persons within the unity of the Godhead. Father, Son, and Holy Spirit are not successive forms of appearance of one Person, but are eternal Persons present from “the beginning” (v. 2). “With” suggests a relationship of close personal intimacy.