Cyril of Alexandria

But the Lord forbade not them that glorified Him as God, but rather forbade those that blamed them, so bearing witness to Himself concerning the glory of the Godhead. Hence it follows, He answered and said unto them, I tell you, if these should hold their peace, the stones would immediately cry out.

Catena Aurea by Aquinas ↗

Theophylact of Ohrid

But Jesus said: "if they keep silent, the stones will cry out." Or: the people say this not out of flattery toward Me, but they utter this doxology because they are convinced and compelled by all those signs and mighty works which they have seen.

Commentary on Luke ↗

Cyprian

For this reason the divine rebuke does not cease to chastise us night nor day. For besides the visions of the night, by day also, the innocent age of boys is among us filled with the Holy Spirit, seeing in an ecstasy with their eyes, and hearing and speaking those things whereby the Lord condescends to warn and instruct us. And you shall hear all things when the Lord, who bade me withdraw, shall bring me back again to you. …

Epistle IX ↗

Bede

To whom He Himself says: I tell you that if these should keep silent, the stones would cry out. All His acquaintances stood at a distance when the Lord was crucified, fearing to confess God whom they saw fixed to the wood, but while these were silent, the stones and rocks with a great voice proclaimed the King who comes in the name of the Lord. …

On the Gospel of Luke ↗

Bonaventure

Second, regarding the approbation of those who praised, it is added: To whom he said: I tell you, that if these shall be silent, the stones will cry out, as if to say that it is the will of God that they should praise, according to that of Matthew twenty-one: "But he said: Have you never read, that out of the mouth of infants and sucklings you have perfected praise"? …

Commentary on Luke, Chapter 19 ↗