Roman bishops did not “make” the bible. It was a compendium written by many many authors over a long time period and collected under one cover.
“If all of the Bibles listed here were traced back to their origins (a work beyond the scope of this writing) the path would lead directly back to the original Hebrew and Greek manuscripts of the Old and New Testaments that exist today.”
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“The Old Testament was compiled and edited by various men over a period of centuries, with many scholars concluding that the Hebrew canon was solidified by about the 3rd century BC.” Source.
“The New Testament is an anthology, a collection of Christian works written in the common Greek language of the first century, at different times by various writers, who were early Jewish disciples of Jesus of Nazareth. In almost all Christian traditions today, the New Testament consists of 27 books. The original texts were written in the first and perhaps the second centuries of the Christian Era…All of the works which would eventually be incorporated into the New Testament would seem to have been written no later than around AD 150.” Source