Similarly, (Ibid. 5) "Then there shall draw near the Cohanim … (6) and all the elders of that city." How so? The elders for washing; the Cohanim for atonement.
(Devarim, Ibid. 3) "that has not drawn under the yoke": This tells me only of the yoke. Whence are other labors derived (as disqualifying factors)? From "that has not been worked" (— in any manner). If so, why is "yoke" specifically mentioned? The yoke disqualifies whether or not the animal works; the other labors disqualify only if the animal works.