Note 36 — Part V. LATER TRACES OF THE SPRINKLED BAPTISMS.
Reading edition
“Βαπτίσαντες τε καὶ της τέφρας ταύτης εἰς πηγὴν.” Τῆς τέφρας ταύτες is the partitive and instrumental Genitive, and indicates the ashes-in-water, as that with which the baptism was to be performed. (Compare John ii, 7.—“Fill the water pots with water.”)