'Foal of a Donkey' in the Bible

Rejoice greatly, O Daughter of Zion!Shout aloud, O Daughter of Jerusalem!Behold, your King (Messianic King) is coming to you;He is righteous and endowed with salvation,Humble and unassuming [in submission to the will of the Father] and riding on a donkey,Upon a colt, the foal of a donkey.

“Tell the daughter of Zion (the people of Jerusalem),‘Behold, your King is coming to you,Gentle and mounted on a donkey,Even on a colt, the foal of a beast of burden.’”

"Do not be afraid, daughter of Zion! Behold, your king is coming, seated on the foal of a donkey!"