וְכ֖וּשׁ יָלַ֣ד אֶת־נִמְרֹ֑ד ה֣וּא הֵחֵ֔ל לִֽהְי֥וֹת גִּבֹּ֖ר בָּאָֽרֶץ׃
At si Cush ang naging ama ni Nimrod; siya ang nagsimulang maging makapangyarihan sa lupa.
Siftei Chakhamim
Who told Avraham, “Jump...” Rashi is answering the question: Was not Nimrod [not Amraphel] the king of Shinar?