The projected Historical and Theological Lexicon of the Septuagint will offer historical studies of Septuagint words, retracing their usage from early Greek authors, over koine Greek and the Septuagint translation itself, into Jewish-Hellenistic and early Christian literature. The latter two of these phases were the object of a workshop held in Buhl (Germany) on January 21 and 22, 2011. The reception of the Septuagint in Greek-speaking Judaism and Christianity raises many questions touching the lexicon, such as: How do Jewish or Christian authors writing in Greek handle the difference existing for some words between the "biblical" usage created in the Septuagint and the usual meaning in Greek? To what extent is it possible to affirm that New Testament authors borrowed their religious terminology from the Septuagint? Which words of the Septuagint continue in later writings with their specific meaning, and which ones go out of use? Is it possible to observe further semantic developments in the use of "biblical" words by Jewish or Christian authors writing in Greek? These and similar questions are of concern not only to the narrow fields of lexical semantics and philology. More often than not, they have important historical and theological implications. With help from some of the best specialists of Jewish-Hellenistic and early Christian texts, an effort will be made in this book to develop an adequate approach to the problems outlined. Papers will combine the analysis of selected words and word groups with considerations of method.