Numbers 1:24

1:24 From the descendants of Gad: According to the records of their clans and families, all the males twenty years old or older who could serve in the army were listed by name.

Numbers 32:2

32:2 the Gadites and the Reubenites came and addressed Moses, Eleazar the priest, and the leaders of the community. They said,

Numbers 32:25

32:25 So the Gadites and the Reubenites replied to Moses, “Your servants will do as my lord commands.

Numbers 32:31

32:31 Then the Gadites and the Reubenites answered, “Your servants will do what the Lord has spoken.

Numbers 34:14

34:14 because the tribe of the Reubenites by their families, the tribe of the Gadites by their families, and half of the tribe of Manasseh have received their inheritance.