I. What it was that the prophet saw; he looked up into the air, and behold a flying roll. A vast large scroll of parchment which had been rolled up, and is therefore called a roll, was now unrolled and expanded; this roll was flying upon the wings of the wind, carried swiftly through the air in open view, as an eagle that shoots down upon her prey; it was a roll, like Ezekiel's that was written within and without with lamentations, and mourning, and woe, Ezek. ii. 9, 10. As the command of the law is in writing, for certainty and perpetuity, so is the curse of the law; it writes bitter things against the sinner. "What I have written I have written and what is written remains." The angel, to engage the prophet's attention, and to raise in him a desire to have it explained, asks him what he sees? And he gives him this account of it: I see a flying roll, and as near as he can guess by his eye it is twenty cubits long (that is, ten yards) and ten cubits broad, that is, five yards. The scriptures of the Old Testament and the New are rolls, in which God has written to us the great things of his law and gospel. Christ is the Master of the rolls. They are large rolls, have much in them. They are flying rolls; the angel that had the everlasting gospel to preach flew in the midst of heaven, Rev. xiv. 6. God's word runs very swiftly, Ps. cxlvii. 15. Those that would be let into the meaning of these rolls must first tell what they see, must go as far as they can themselves. "What is written in the law? how readest thou? Tell me that, and then thou shalt be made to understand what thou readest."