The fame of the Bishop's Bible is that it was the first Bible by the Roman Catholic church in English, where they loosened the strict literalness to the Vulgate's grammar and syntax. Although it was still difficult to understand, it did introduce biblical vocabulary (albeit Catholic concepts) into the English language. Note that the KJV translators were instructed to retain this religious vocabulary (i.e. church, apostle, bishop, baptism, etc) in their version.