And he said to me, What seest thou? And I answered, I see a flying {a} scroll; its length is twenty cubits, and its breadth ten cubits.

(a) Because the Jews had provoked God's plagues by condemning his word, and casting off all judgment and equity, he shows that God's curses written in this book had justly happened both to them and their fathers. But now if they would repent, God would send the same among the Chaldeans and their former enemies.

Jamieson-Fausset-Brown Bible Commentary

2. length . twenty cubits . breadth . ten cubits-thirty feet by fifteen, the dimensions of the temple porch (1Ki 6:3), where the law was usually read, showing that it was divinely authoritative in the theocracy. Its large size implies the great number of the curses contained. The Hebrew for "roll" or "volume" is used of the law (Ps 40:7).

Matthew Henry's Concise Commentary

5:1-4 The Scriptures of the Old and New Testament are rolls, in which God has written the great things of his law and gospel; they are flying rolls. God's word runs very swiftly, Ps 147:15. This flying roll contains a declaration of the righteous wrath of God against sinners. Oh that we saw with an eye of faith the flying roll of God's curse hanging over the guilty world as a thick cloud, not only keeping off the sunbeams of God's favour, but big with thunders, lightnings, and storms, ready to destroy them! How welcome then would the tidings of a Saviour be, who came to redeem us from the curse of the law, being himself made a curse for us! Sin is the ruin of houses and families; especially the doing hurt to others and false witness. Who knows the power of God's anger? God's curse cannot be kept out by bars or locks. While one part of the curse of God ruins the substance of the sinner, another part will rest on the soul, and sink it to everlasting punishment. All are transgressors of the law, so we cannot escape this wrath of God, except we flee for refuge to lay hold on the hope set before us in the gospel.