If one wishes to look for parallels to the rabbinic yeṣer in Christian Apocrypha one must first know what these Apocrypha are. This, however, is far from easy. According to the most widespread understanding of the word, “the (Christian) apocrypha are texts with the ambition of belonging to the biblical writings but without being included into the canon.” This meaning of the word “apocryphon” originated with Protestants in the seventeenth century during the theological debates with Catholics and, as time went on, a corpus (we could almost say, a canon) of apocryphal writings came into being. The notion, however, raises a number of problems: the majority of Apocrypha were not intended to become “canonic” (their titles were often added only afterwards); when the early Apocrypha were written the canon had not yet been created; according to this definition no Apocryphon could have been written after the closing of the canon, but many writings composed much later are considered as such; this notion is not an academic but a theological one, and its meaning varies according to the theological conviction of a given religious community (for example, OT Apocrypha are not the same for Catholics and Protestants).