Sea Breeze, I am saying that that which became part of the Bible as Christian teachings is the entire NT. Before there were any Christians the Bible (the Holy Scriptures) consisted solely of the OT (the Hebrew Scriptures and translations of it, such as the Greek Septuagint). Nothing in your quote of the WT indicates the WT was talking about writings composed after the last apostle died. Many modern day English speaking Jews literally call their holy scriptures book "the Bible", even though it does it contain the NT. They believe that the word "Bible" does not exclusively mean the Christian Bible (NT with the OT). I know that because I have personally meant some such non-Christian Jews who when talking to me call their Holy Scriptures book "the Bible" and one of them is a current friend of mine. I also have seen a Jewish translation of the Hebrew Scriptures (the OT) which on the title page (and/or cover) says the word "Bible"! See https://en.wikipedia.org/wiki/Jewish_English_Bible_translations which says in part the following.
"Hebrew Bible English translations are English translations of the Hebrew Bible (Tanakh) according to the Masoretic Text,[1] in the traditional division and order of Torah, Nevi'im, and Ketuvim. Most Jewish translations appear in bilingual editions (Hebrew–English)."
Note that the page also says there is a Jewish non-Christian book called the "Jewish Family Bible" and that there is a also a translation of the Hebrew Bible, The Hebrew Bible: A Translation with Commentary.
https://www.britannica.com/topic/biblical-literature/Old-Testament-canon-texts-and-versions uses the term "Hebrew Bible" in referring to only the OT when it says the following. "The Hebrew Bible is often known among Jews as TaNaKh, an acronym derived from the names of its three divisions: Torah (Instruction, or Law, also called the Pentateuch), Neviʾim (Prophets), and Ketuvim (Writings)."
An ecumenical study Bible (intended for use by Jews of Judaism, Protestant Christians, Catholic Christians, and Orthodox Christians) called The New Oxford Annotated Bible: Revised Standard Version with the Apocrypha (at least in their Augmented Third Edition) on the bottom of its scriptures pages for the OT say "HEBREW BIBLE" and on the bottom of their NT pages say "NEW TESTAMENT". "The Editors' Preface" of that book says the following. "We have referred to the first portion of the text as "the Hebrew Bible," since it is the collection preserved by the Jewish community and that is how Jews regard it ...."