And as they went on their journey, they came in the evening to the river Tigris, and they lodged there.
All Commentaries on Tobit 6:1 Go To Tobit 6
Bede
AD 735
Tobias stopped over by the waters of the Tigris because the Lord, when he appeared in the world, spent his life among sinners and mortals; but the water of sin did not touch him, nor did the prince of darkness, when he came, find in him anything of his own.