A.T. Robertson Commentary Luke 13:16

"And ought not this woman, being a daughter of Abraham, whom Satan had bound, lo, [these] eighteen years, to have been loosed from this bond on the day of the sabbath?" — Luke 13:16 (ASV)

Daughter of Abraham (θυγατερα Αβρααμ). Triple argument, human being and not an ox or ass, woman, daughter of Abraham (Jewess), besides being old and ill.

Ought not (ουκ εδε). Imperfect active. Of necessity. Jesus simply had to heal her even if on the sabbath.

Whom S tan bound (ην εδησεν ο Σατανας). Definite statement that her disease was due to Satan.