Matthew 21 has two animals at the Triumphal Entry while Mark and Luke have one; the young donkey points to Jesus's sacrificial nature

Mike acknowledges this is a famous textual issue with complexities in the Greek he can't fully address off the cuff. He argues the symbolic weight is not about Jews and Gentiles but focuses on the young, unridden colt as pointing to the sacrificial nature of Jesus—the one who comes to serve. The untouched young animal carries quasi-sacrificial connotations (animals set apart/never used have ritual significance).