such letters were regularly sent,29 as more general references to communications from the Temple authorities to the Diaspora on calendrical and other matters confirm (m. Rosh. Hash. 1:3–4; Acts 28:21). This tradition of direction and communication from the centre is the background to the letter in Acts 15:23–29, which communicates a major halakhic decision of the Jerusalem Christian leadership, assumed to have universal authority on such a matter, to (in this case) Gentile members of churches in
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