Greek Bible Art: Tobias Saying Farewell

This image shows Tobias Saying Farewell to his Father by William-Adolphe Bouguereau (source).  This verse is from Tobias 5:21.

ἄγγελος γὰρ ἀγαθὸς συμπορεύσεται αὐτῷ
Angelus Dei bonus comitetur ei.
For the good angel will keep him company.