For many years, Professor Joël Delobel has served as a member of the Department of Biblical Studies of the Faculty of Theology, K.U. Leuven (1969-2001). His research has tended to focus on Luke-Acts, Pauline Literature and especially Textual Criticism (he is a member of Das Institut für Neutestamentliche Textforschung, Münster). His friends and colleagues in the Department of Biblical Studies of the Faculty of Theology and elsewhere have honoured him with a Festschrift on the occasion of his retirement. The congratulatory volume deals with an issue that is dear to him: the mutual link between textual criticism and exegesis, which he himself once referred to as the 'Siamese twins'. A number of international scholars in the field of textual criticism have treated different aspects of this relationship. Some contributions are of a more general nature: B. Aland deals with the criteria used to judge the value of smaller New Testament Papyrus fragments, J. Lust compares the textual critical investigation of the Old Testament to that of the New, W.L. Petersen studies the earliest form of the text of the Gospel. Other contributions are related to a specific text: Mt 21,28-32 (J.K. Elliott); Mk 16,8 (C. Focant); Lk 7,42b (T. Baarda); Lk 22, 43-44 (C.M. Tuckett); Lk 24,12 (F. Neirynck); Jn 4,1 (G. Van Belle); Jn 12,31 (M.-É. Boismard); Jn 16,13 (R. Bieringer); Acts 15,20.29; 21,25 (C.-B. Amphoux); Rom 16,7 (E.J. Epp); Rom 16,25-27 (R.F. Collins); 1 Cor 2,1 (V. Koperski); The Epistle of James (D.C. Parker); Rev 13,9-10 (J. Lambrecht) and Rev 13,18 (J.N. Birdsall); J. Verheyden deals with the New Testament text in the 2nd Century, more specifically in the writings of Justin.