[186] He also celebrates the number seven, multiplied by the number ten; at one time speaking of the seventy palm-trees by the fountains, and in other passages he speaks of the elders, who were only seventy in number, to whom the divine and prophetical Spirit was vouchsafed. And again, it is the same number of heifers which are sacrificed at the solemn festival of the feast of tabernacles, [110] in a regular and proper division and order, for they are not all sacrificed together, but in seven days, the beginning being made with thirteen bulls; for thus, by every day subtracting one till they come to the number seven, the arranged number of seventy is properly completed.