The author presents the state of research about source criticism concerning Qo 12,12 and then provides a structural and literary analysis of this verse. He pursues his enquiry further, showing that there is no real evidence to support the common interpretation that Qo 12,12 is a witness of the emerging canon of scripture. Qo 12,12 is not by a second hand ; it's rather an ironical text in which the author offers a self-criticism.