In French, one and the same word designates both the , a literary form in the Gospels, and the parabola, a mathematical curve in geometry. Although they belong to very different fields — theology and mathematics — they share a common root and a logic of projection or relationship.
The literary : a setting in parallel
In the Gospels, a is a symbolic story that sets an earthly reality alongside a spiritual truth. The word comes from the Greek parabolē (παραβολή), which means “comparison,” “placing side by side.” Jesus uses this form to project the into familiar scenes: a sower, a pearl, a net…
The literary draws a link between two worlds, visible and invisible, to awaken spiritual understanding.
The mathematical namesake of the : a projected curve
In geometry, the mathematical namesake of the , the parabola, is a conic curve defined as the set of points equidistant from a fixed point (the focus) and a line (the directrix). It appears in projection phenomena: trajectories, optics, architecture…
The ’s mathematical namesake results from a relationship between two elements, focus and directrix, and produces a harmonious form.
The conceptual link: projection and revelation
What links the two uses is the idea of projection:
The literary projects a heavenly truth into an earthly image.
The ’s mathematical namesake projects a geometric form from a fixed relationship.
Both translate an invisible structure into a visible form, whether a spiritual truth or a mathematical law.
A possible meditation
One could say that the Gospel is a curve of revelation: it starts from a concrete point (the sower, the , the pearl) and rises toward a hidden truth, like the trajectory of a parabola — in French, the same word as — that climbs to its summit before descending. It invites us to follow the movement, to grasp the axis, to receive the light.