Thank you for writing back.
For as far back in history as we can go, there have always been Jews who have not eaten any flesh foods, even on festival days. The Essenes are probably the best known, and Jesus’ teachings and practice seems to follow their way of life.
We also don’t believe that God ever commanded anyone to sacrifice any animals or to eat them. There may have been some concessions to limit the depravity of human beings, but there were never any commandments. His creation and heavenly intent has always been the same, and that is to be caretakers of His creations and not to harm another living being.
Furthermore, all of these passages in the Bible seem to have been entered into the codified Bible by the Ezra priestly writers around 400 BCE. The earliest writers don’t have anything about God telling anyone to sacrifice or eat animals.
We would like to refer you to another web site for an Orthodox Jewish view of some of you questions, for it reflects a sharp split in their understand of what the Scriptures actually say and how they are practiced. See Ancient Hebrew Learning Center http://www.ancienthebrewlc.org
In the Love of the Lord,
Frank and Mary