Is the bible unverified and collected by unknown anonymous authors? the Books of the old testament?
It was not until a little later, possibly during the Tenth century B.C., that the so-called ‘Yahvist' text of the Pentateuch was written. This text was to form the backbone of the first five books ascribed to Moses. Later, the so-called ‘Elohist' text was to be added, and also the so-called ‘Sacerdotal' version.
The Book of Ezekiel, the last great prophet and the prophet of exile, was not arranged into its present form until after his death by the scribes that were to become his spiritual inheritors. These same scribes were to resume Genesis in a third version, the so-called ‘Sacerdotal’ version, for the section going from the Creation to the death of Jacob.
The period following the deportation is also the period of the Books of Wisdom: Proverbs was written definitively around 480 B.C., Job in the middle of the Fifth century B.C., Ecclesiastes or Koheleth dates from the Third century B.C., as do the Song of Songs, Chronicles I & II, Ezra and Nehemiah;