This prophecy is given concerning Jesus in Zechariah 9 verse 9:
9 “Rejoice greatly, O daughter of Zion!
Shout, O daughter of Jerusalem!
Behold, your King is coming to you;
He is just and having salvation,
Lowly and riding on a donkey,
A colt, the foal of a donkey.
Jesus fulfilled this prophecy during his triumphal entry into Jerusalem riding on a young donkey (John 12:12-19).
What a strange choice of animal for Jesus to ride on. A king to express his authority, power and high position surely would ride on a noble, stately animal such as a horse. But Jesus chose a donkey, not only a donkey but a young donkey, the foal of a donkey.
It was a statement to tell us that He is the king of a very different kingdom, where to go up you must go down, to rule you must serve, to be over you must be under, to be great you must be small.
It was to tell us He is……the king of an upside down kingdom.