RobH_en_tn/jdg/12/14.md

They rode on seventy donkeys

These men owned seventy donkeys, which they did ride. Here the word "rode" is used instead of "owned." Alternate translation: "They owned seventy donkeys" (See: rc://en/ta/man/translate/figs-metonymy)

forty sons ... thirty grandsons ... seventy donkeys

"40 sons ... 30 grandsons ... 70 donkeys (See: rc://en/ta/man/translate/translate-numbers)