Examples of this sudden turn from the vague to the real are found throughout Jeremiah's Oracles of Doom. Here are some of them:—

Wind off the glow of the bare desert heights,

Right on the Daughter of My people,

It is neither to winnow nor to cleanse,

In full blast it meets me...:

Lo, like the clouds he is mounting,

Like the whirlwind his chariots!

Swifter than vultures his horses;

Woe! We are undone!

For hark a signal from Dan,