Luke 19:40

The stones. This is a proverb, as if he had said: God has resolved to glorify me this day, in order to fulfil the prophecies. Nothing can hinder the execution of his decrees; if men were silent, he would make even the stones to speak. (Calmet) --- At the crucifixion of our Redeemer, when his friends were silent through fear, the very stones and rocks spoke in his defence. Immediately after he expired, the earth was moved, the rocks split, and the monuments of the dead opened. (Ven. Bede) --- Nor is it any wonder if, contrary to nature, the rocks bespeak the praises of the Lord, since he was even praised by a multitude, much more insensible than the rocks themselves, in crucifying him only a few days after, whom they now salute with Hosannahs of joy. (St. Ambrose)