“The name of the forty-second reading from the Torah is Mattot (מטות), which means “tribes.” The name is derived from the words of Numbers 30:1, which says, “Then Moses spoke to the heads of the tribes of the sons of Israel.” Numbers 30 discusses the laws of vows and oaths. Numbers 31 tells the story of Israel’s war with Midian. Numbers 32 relates the story of how the Reubenites, the Gadites and the half-tribe of Mannaseh came to inherit the land east of the Jordan River. Except in biblical calendar leap years, Mattot is read together with the subsequent Torah portion, Massei, on the same Sabbath”. (Taken from First Fruits of Zion)
