20 Whilst I was treating on this matter, tidings were brought me that the royal hangings were taken down, and the Basilica filled with people, who were calling for my presence, so I at once turned my discourse to this, and said: How high and how deep are the oracles of the Holy Spirit! We said at Matins, as you, brethren, remember, and made the response with the greatest grief of mind: “O God, the heathen have come into Your inheritance.” And in very deed the heathen came, and even worse than the heathen came; for the Goths came, and men of different nations; they came with weapons and surrounded and occupied the Basilica. We in our ignorance of Your greatness mourned over this, but our want of foresight was in error.
Source: Letters (New Advent)