Komentarz do Psalmów 78:12

Before their forefathers He wrought wonders (Nevertheless—Shem Ephraim) Afterwards, when the end arrived, they too “continued to sin against Him,” as he further concludes. (Another explanation—Shem Ephraim)

Before their forefathers Abraham, Isaac, and Jacob came beside the sea, and the Holy One, blessed be He, showed them how He was redeeming their children.