But he knew not; and he said to him, Canst you go with me to Rages? and know you those places well?
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An angel appeared to Tobias and offered himself as a companion through whom he might perform wonders for the people to whom he had been sent. And the Son of God assumed the nature of a human being so that, thus visibly spending his life with human beings, he might save the human race. - "On Tobit 3.25"