I have a question: do elders of a congregation have the authority to appoint additional services throughout the week (i.e. not Sabbath services)? I looked at various past threads dealing with prayer meetings and the like but I couldn't find this specific aspect dealt with (from a cursory reading). Is there a passage from Scripture, or a teaching from good and necessary consequence, which would grant them this authority? And if so how far can the session go in requiring people to attend those services? The Directory for Public Worship allows for the appointing of days of thanksgiving and humiliation but, alas, does not provide scriptural proofs. In these instances, however, there is Scriptural precept for giving thanks for the harvest, for example. So I'm thinking more generally. N.B. I'm specifically thinking of services other than the so-called holy days of Christmas and Easter. So just regular worship services that would adhere to the RPW in all aspects but not held on the Sabbath.