There is an alliterative play on words between Jair (ja’ir), donkey (‘ayir) and city/town (‘ir). This creates a humourous irony in the passage. Jair’s concerns are not with saving Israel from anyone; instead, they are in building a power base for himself and his sons. This self-interest motif will recur throughout the remaining judges.
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4 Il avait trente fils, qui montaient sur trente ânons, et qui possédaient trente villes, appelées encore aujourd'hui bourgs de Jaïr, et situées dans le pays de Galaad.