Numbers 32:1-5

Now the sons of Reuben and the sons of Gad had very large herds of cattle, and they saw the land of Jazer and the land of Gilead [on the east side of the Jordan River], and indeed, the place was suitable for raising livestock. So the sons of Gad and of Reuben came and spoke to Moses, to Eleazar the priest, and to the leaders of the congregation, saying, “[The country around] Ataroth, Dibon, Jazer, Nimrah, Heshbon, Elealeh, Sebam, Nebo, and Beon, the land which the LORD conquered before the congregation of Israel, is a land [suitable] for livestock, and your servants have [very large herds of] livestock.” They said, “If we have found favor in your sight, let this land be given to your servants as a possession. Do not take us across the Jordan [River].”