Rashi on Genesis 15:14/רש"י על בראשית ט״ו:י״ד

1וגם את הגוי AND ALSO THAT NATION — The word וגם and also—(that nation also will I judge)—suggests that other nations will be judged as well: it is used here to include the four Monarchies (of the book of Daniel) who also will perish because they enslaved Israel (Genesis Rabbah 44:19).

2דן אנכי I WILL JUDGE with ten plagues (Genesis Rabbah 44:20).

3ברכוש גדול WITH GREAT SUBSTANCE — with great wealth, as it is said, (Exodus 12:36) “And they despoiled the Egyptians.”