Discovery BoxNumbers 1:18 
Context1:18 and they assembled 1 the entire community together on the first day of the second month. 2 Then the people recorded their ancestry 3 by their clans and families, and the men who were twenty years old or older were listed 4 by name individually,
Numbers 1:20
Context1:20 And they were as follows:
The descendants of Reuben, the firstborn son of Israel: 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 individually.
1 tn The verb is the Hiphil of the root קָהַל (qahal), meaning “to call, assemble”; the related noun is an “assembly.”
2 tc The LXX adds “of the second year.”
3 tn The verb is the Hitpael preterite form וַיִּתְיַלְדוּ (vayyityaldu). The cognate noun תּוֹלְדוֹת (tolÿdot) is the word that means “genealogies, family records, records of ancestry.” The root is יָלַד (yalad, “to bear, give birth to”). Here they were recording their family connections, and not, of course, producing children. The verbal stem seems to be both declarative and reflexive.
4 tn The verb is supplied. The Hebrew text simply has “in/with the number of names of those who are twenty years old and higher according to their skulls.”
