According to my sources, when the great Babylonian exile occurred starting in 597 BCE, several of the learned Israelites carried with them various scrolls and letters from their private collections. There was, at that time, nothing sacred about any of those writings, and they were not regarded as being precious. In writing the Books of the OT Bible, there was nothing to stop scribes from changing the words in those documents when transcribing them. Since much of the Hebrew liturgy was based on oral tradition and scrolls of questionable accuracy, who knows what the original stories were, especially when many of the original scrolls were lost? Ezekiel was supposed to have eaten some of them. The Books of the OT were copied over and over by scribe after scribe, and there really was not an official version of the OT until the Rabbis of the time of Jesus began to try to standardize the Bible. By that time the Greek Septuagint version had already been produced. The final edition of the official canon of the Old Testament was not set down until well into the Midrash and Talmudic era.