International Standard Version Since, according to David's final instructions, the list above contains the total number of descendants of Levi from the age of 20 years and upward,
American Standard Version For by the last words of David the sons of Levi were numbered, from twenty years old and upward.
Young's Literal Translation for by the last words of David they took the number of the sons of Levi from a son of twenty years and upward,
