The interpretation timeline

Tob 11:9

How this passage has been read — the sources, oldest to newest.

From the early Church Fathers to now.

Tob 11:9 · Douay-Rheims
“Then the dog, which had been with them in the way, ran before, and coming as if he had brought the news, shewed his joy by his fawning and wagging his tail.”
Post-Reformation c. 1650 – 1900
1849
A.D.
1774–1849
“The dog, &c. This may seem a very minute circumstance to be recorded in sacred history; but, as we learn from our Saviour, (St. Matthew v. 18) there are iotas and tittles in the word of God, that is to say, things that appear minute, but which have indeed a deep mysterious meaning in them. (Challoner) — (Ven. Bede; St. Jerome in Isaias lvi. 8.; St. Augustine, contra Faust. xxii. 56.; Worthington) — The other versions relate this event, ver. 4.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.