Judges 10:4
4 And he had thirty zsons who rode on thirty donkeys, and they had thirty cities, called Havvoth-jair ato this day, which are in the land of Gilead.
Judges 12:14
14 He had forty sons and thirty grandsons, who xrode on seventy donkeys, and he judged Israel eight years.
Zechariah 9:9
The Coming King of Zion
9 iRejoice greatly, O daughter of Zion!
Shout aloud, O daughter of Jerusalem!
Behold, your king is coming to you;
righteous and having salvation is he,
jhumble and kmounted on a donkey,
on a colt, the foal of a donkey.