# LCMS Convention Workbook_St. Louis Missouri_2026_S241 # Machine transcription, uncorrected — CHI Digital Archive (demonstration) THEOLOGICAL DOCUMENTS­­—COMMISSION ON THEOLOGY AND CHURCH RELATIONS 241 R62.8 Unity in Doctrine, Uniformity and Variety in Practice A Study Document Unity in Doctrine, Uniformity and Variety in Practice OBER A STUDY DOCUMENT OF THE COMMISSION ON THEOLOGY AND CHURCH RELATIONS OCTOBER 2025 Contents Preface........................................................................................................................................................................................................................ 1 Introduction.............................................................................................................................................................................................................. 3 Early Church ................................................................................................................................................................................................................5 Case Study 1 Jerusalem Council (Acts 15)......................................................................................................................................................................... 5 Case Study 2 Date of Easter (Second Century)................................................................................................................................................................ 7 Lutheran Reformation ............................................................................................................................................................................................ 11 Case Study 3 Lutherans Invocait Sermons (1522) ...................................................................................................................................................... 11 Case Study 4 Adiaphoristic Controversy (16th Century) ..........................................................................................................................................15 The Missouri Synod .................................................................................................................................................................................................... 19 Case Study 5 Formation of the Synod (1847) ............................................................................................................................................................... 19 © 2026 The Lutheran Church—Missouri Synod 1333 S. Kirkwood Road St. Louis, MO 63122 888-THE LCMS • lcms.org All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of The Lutheran Church—Missouri Synod. Unless otherwise indicated, all Scripture quotations are from the ESV® Bible (The Holy Bible, English Standard Version®), copyright © 2001 by Crossway, a publishing ministry of Good News Publishers. Used by permission. All rights reserved. Cover Image: LCMS Communications/Erik Lunsford Case Study 6 Lay Lectors (1989) ........................................................................................................................................................................................22 What Now? ................................................................................................................................................................................................................ 27 2026 Convention Workbook