נֶ֣גֶד אֲ֭בוֹתָם עָ֣שָׂה פֶ֑לֶא בְּאֶ֖רֶץ מִצְרַ֣יִם שְׂדֵה־צֹֽעַן׃
אַנטקעגן פֿאַר זײערע עלטערן האָט ער געטאָן װוּנדער, אין לאַנד מצרַיִם, אין פֿעלד פֿון צועַן.
Rashi
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)
Rashi
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.