What This Chapter Is About
Tobias sends Raphael to collect the ten talents of silver from Gabael in Rages while he remains at Raguel's house during the wedding festivities. Raphael retrieves the money and the signed note, and brings Gabael back to the wedding feast, where Gabael blesses Tobias and Sarah.
What Makes This Chapter Remarkable
This is the shortest and most transitional chapter in Tobit, yet it serves an essential narrative function: the original errand (recovering the money) is completed, even as the unexpected blessings (marriage, exorcism, eventual healing) have already begun to unfold. Gabael's blessing of Tobias invokes the patriarchal covenant and completes the economic storyline.
Translation Friction
Jerome's version is quite compressed. The logistics of Raphael traveling alone to Rages and back while Tobias stays in Ecbatana require the reader to accept a time-lapse. The Vulgate does not dwell on distances.
Connections
The recovery of the deposit connects to the parable of the talents (Matt 25:14-30) by vocabulary if not by theme. Gabael's blessing echoes the Aaronic benediction (Num 6:24-26). The completion of the financial errand fulfills Tobit's charge from chapter 4.