The people of Israel and Judah are pictured as if they were birds that fly down quickly to attack a person or animal. AT: "they will go quickly to the Philistine hills to attack the people there" (See: [[rc://en/ta/man/translate/figs-metaphor]])
# the gulf of the Sea of Egypt
A "gulf" is a large area of water that land partly surrounds.
# With his scorching wind he will wave his hand over the Euphrates River
Waving his hand over something represents his power to change it. AT: "By his power he will cause a scorching wind to blow on the Euphrates River" (See: [[rc://en/ta/man/translate/figs-metaphor]])
# his scorching wind
This is a strong or hot wind that causes some of the water in rivers to dry up.
# so it can be crossed over in sandals
"so that people can cross over it even while wearing their sandals"