A hand was sent - Here the hand signifies not only the instrument of conveyance, but an emblem of the Divine power, which the hand of God always signifies.
A roll of a book - שפר מגלת megillath sepher . All ancient books were written so as to be rolled up; hence volumen, a volume, from volvo, I roll.
Was sent - Rather, was put forth.
A roll of a book - The book was one of the ancient kind written on skins rolled up together. Hence, our English volume Psalm 40:7. The writing was usually on one side, but in this case it was written within and without, on both sides, the writing as it were running over, to express the abundance of the calamities in store for the devoted people. To eat the book signifies to be thoroughly possessed with its contents (compare Ezekiel 3:10; Jeremiah 15:16). There should be no break between Ezekiel 2:10 and Ezekiel 3.