Luke 4:17

As he unfolded the book: and again, (ver. 20) when he had folded the book. Books at that time where not like our now-a-days, but were skins or parchments, rolled or folded up. (Witham) --- Some are of opinion that the Jews of Nazareth, having heard of the miracles and fame of Jesus, and that he was accustomed to teach in the synagogues, though he had never been instructed in any learning, when he rose to speak, purposely gave him the book of Isaias, which was esteemed the most difficult to be explained, in order to try his learning; though it is probable that it was done by the all-directing interposition of Divine Providence. (Maldonatus)