This paper examines the narrative contribution of the humorous gag, as a dynamic image intended to create ambivalence, in the biblical stories. Despite being one of the most important resources used to produce comedy in the visual arts, the gag can also be observed from a narratological point of view to meas-ure its involvement in a plot. Storytelling through gags provides an alternative means of approaching issues, developing threads and concluding episodes. The distinctiveness of the gag lies in the strength of the images it suggests. The more shocking or misplaced a gag appears, the greater its contribution to the general narrativity, which may become more evident according to the strength of the image built. This argument is shown through some biblical examples.