The coastal lands would be held responsible (Joel 3:4-3:4)

“What are you to me?

O Tyre!

O Sidon!

All the regions

Of Philistia!

Are you paying me back

For something?

If you are paying me back,

I will turn your deeds back

Upon your own heads,

Swiftly,

As well as speedily.”

It is obvious from this passage that Yahweh and Joel were referring to the neighbors of Jerusalem, the coast cities of Tyre and Sidon as well as the coastal Philistine cities, not the whole world. How could they pay back what they had done? Yahweh was going to turn their deeds back on them in a swift speedy way.