The deuterocanonical books form an "intertestament" between the books of the rabbinic Bible and those of the New Testament. They are on a border line, a rift or a bridge between the new rising Christianity and the Judaism rising anew after 135. They also provide a connection between the Aramaic Gola and the Hellenistic Diaspora. The "intertestamentary" books - and namely the deuterocanonical writings which are like a canonical "intertestament" - prove to be necessary to the understanding of the Bible.