Cross reference
Deuteronomy 2:20
20 (That land is said to have been a land of the Rephaim, for Rephaim had been living there in earlier times, but they were named Zamzummim by the Ammonites;
Genesis 14:5
5 And in the fourteenth year, Chedorlaomer and the kings who were on his side, overcame the Rephaim in Ashteroth-karnaim, and the Zuzim in Ham, and the Emim in Shaveh-kiriathaim,