The Orthodox version reads:
"O Lord, set a law-giver over them; let the nations know that they are but men.
The Protestant (K.J.V.) version reads;
"Strike them with terror, O Lord; let the heathens know that they are but men".
As you can see, there is a considerable difference in the content and spirit of the two versions. The authentic (Orthodox) version is a part of the prophecies about the coming of the Messiah (Christ). This is completely missing in the Protestant version.