From the early Church Fathers to now.
“But how I shall get this money, I cannot tell; he knoweth me not, and I know not him: what token shall I give him? nor did I ever know the way which leadeth thither.”
“I cannot. Greek, “as I know him not; and he gave him the handwriting, and said to him: Seek,” &c. (Haydock) — The Greek, &c., had not before noticed this token. (Calmet) — Hitherto Tobit had spoken in the first person. (Haydock)”
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.