I took it upon myself to impress Biddy (and through Biddy, Joe) with the grave obligation I considered my friends under, to know nothing and say nothing about the maker of my fortune.
Do I tell it, fur you to feel a obligation?
Chapter XVI With my head full of George Barnwell, I was at first disposed to believe that I must have had some hand in the attack upon my sister, or at all events that as her near relation, popularly known to be under obligations to her, I was a more legitimate object of suspicion than any one else.
Neither were my notions of the theological positions to which my Catechism bound me, at all accurate; for, I have a lively remembrance that I supposed my declaration that I was to "walk in the same all the days of my life," laid me under an obligation always to go through the village from our house in one particular direction, and never to vary it by turning down by the wheelwright’s or up by the mill.
There are no more uses of "obligation" in the book.