Bede

But they said: Because the Lord has need of him. And they brought him to Jesus. Those who had resisted the loosing of the colt, upon hearing the name of the Lord, became quiet, for the masters of errors who opposed the teachers of the salvation to the Gentiles, defended their darkness until the power of the true possessor and Lord shone through with miracles to back it up. …

On the Gospel of Luke ↗

Bonaventure

But they said: Because the Lord has need of him, by the lordship over his own property. Hence from this the power of the divine command is apparent, because they neither inquired further nor resisted. Hence Chrysostom: "The power of Christ prepared their heart to give to strangers." From this also the power of obedience is apparent, and how great is its efficacy, because no master is able to contradict him who obeys; hence also Proverbs 21: "An obedient man shall speak of victories." And note here according to the mystery that the …

Commentary on Luke, Chapter 19 ↗