Tertullian

“ It is for you to imagine [1] the industry of this clandestine arrangement. For to this end had she deposited and concealed (this germ) , that, whenever the Demiurge came to impart life to Adam by his inbreathing, he might at the same time draw off from the vital principle [2] the spiritual seed, and, as by a pipe, inject it into the clayey nature; in order that, being then fecundated in the material body as in a womb, and having fully grown there, it might be found fit for one day receiving the perfect Word. ”