The answer is: A thirty foot flying roll

Zech 5:1-4

Zechariah's vision of a thirty-foot flying roll, or scroll, is absolutely fascinating. In Zechariah 5:1-4, the scroll symbolizes God’s judgment, which is particularly aimed at those who engage in deceit and theft. Picture this huge object soaring through the air—it's not just an interesting spectacle but acts as a striking reminder of the consequences faced by those who don’t uphold honesty and integrity.

Now, if you look deeper, this vision paints a vivid picture of divine accountability. The huge scroll has writing on both sides with curses meant for liars and thieves. Historically, feet and rules spilling out of writing precedes legal judgments, and what better way to convey a message of judgment than through a large, unmistakable sign that everyone can see?

The idea of a flying scroll actually echoes themes found in other parts of scripture. For instance, it mirrors the prophetic visions in Isaiah and Ezekiel, reinforcing the idea that God’s truth and justice cannot be contained or swept away. Just like how a balloon can slip from one's grip, absurdly-odd and striking images bring forth powerful messages. It's fascinating how some of these obscure visions often provoke intense spiritual ponderings, revealing truths that stand even today.

So remember, this celestial symbol also serves as an encouragement for courage in pursuing truth and righteousness—an adventure common on the horizon throughout the Book of Prophets!