These are two scholars, both highly proficient in Hebrew and well-studied in the book of Genesis, offer varying opinions regarding Genesis 1:1.
John H. Walton makes the argument that
Genesis 1:1 is a literary introduction to the chapter. He presents quite a few arguments, some rather esoteric and based upon grammar, while others are a bit easier to understand for those not as proficient in Hebrew.
One being that creation is said to have happened in 7 days, Genesis 1:1 falls outside of those days.
Another argument for Genesis 1:1 being an introduction revolves around the Hebrew introduction to each cycle in Genesis and use of the word,
toledoth, “these are the generations of”. Each cycle has an introductory sentence.
Walton believes that Genesis 1:1 by itself, does not present a strong case for creation out of nothing, but the doctrine is presented fully in other parts of Scripture.
"So the thrust of it is: “In the beginning, God created heavens and earth; let me tell you how He did it.” Therefore, the account begins in verse 2."
John H. Walton, OT301 Origins of Genesis 1–3 (Bellingham, WA: Lexham Press, 2014).
John Sailhammer, on the other hand, argued that when Genesis 1:1 uses the phrase, “In the beginning…” it speaks of an indeterminate period of time.
"There is no textual reason why "the beginning" in Genesis 1:1 could not have lasted millions or even billions, of years. However, the word does not require
vast time periods; it leaves the duration an open question." (Genesis Unbound, p. 29)
He states, “To see Genesis 1:1 as a title actually excludes the theologically essential notion of
creatio ex nihilo, or “creation out of nothing.” (p. 247)
“If, as I believe, Genesis 1 intended to teach that God created the world “out of nothing,” then the Hebrew word
bara would not only be well suited for that use, but also would be the only appropriate term that could be chosen.” (p. 249)
Rob