GOD'S WORD® Translation
When that day comes, the fortified cities which other people abandoned because of the Israelites will be like abandoned woods and undergrowth. So it will become a wasteland.

American Standard Version
In that day shall their strong cities be as the forsaken places in the wood and on the mountain top, which were forsaken from before the children of Israel; and it shall be a desolation.

Berean Study Bible
In that day their strong cities will be like forsaken thickets and summits, abandoned to the Israelites and to utter desolation.

Douay-Rheims Bible
In that day his strong cities shall be forsaken, as the ploughs, and the corn that were left before the face of the children of Israel, and thou shalt be desolate.

English Revised Version
In that day shall his strong cities be as the forsaken places in the wood and on the mountain top, which were forsaken from before the children of Israel: and it shall be a desolation.

King James Bible
In that day shall his strong cities be as a forsaken bough, and an uppermost branch, which they left because of the children of Israel: and there shall be desolation.

World English Bible
In that day, their strong cities will be like the forsaken places in the woods and on the mountain top, which were forsaken from before the children of Israel; and it will be a desolation.

Young's Literal Translation
In that day are the cities of his strength As the forsaken thing of the forest, And the branch that they have left, Because of the sons of Israel, It also hath been a desolation.

Isaiah 17:9 Additional Translations ...