GOD'S WORD® Translation
Runners run to meet runners. Messengers follow messengers. They inform the king of Babylon that his entire city is captured.

American Standard Version
One post shall run to meet another, and one messenger to met another, to show the king of Babylon that his city is taken on every quarter:

Berean Study Bible
One courier races to meet another, and messenger follows messenger, to announce to the king of Babylon that his city has been captured from end to end.

Douay-Rheims Bible
One running post shall meet another, and messenger shall meet messenger: to tell the king of Babylon that his city is taken from one end to the other:

English Revised Version
One post shall run to meet another, and one messenger to meet another, to shew the king of Babylon that his city is taken on every quarter:

King James Bible
One post shall run to meet another, and one messenger to meet another, to shew the king of Babylon that his city is taken at one end,

World English Bible
One runner will run to meet another, and one messenger to meet another, to show the king of Babylon that his city is taken on every quarter:

Young's Literal Translation
Runner to meet runner doth run, And announcer to meet announcer, To announce to the king of Babylon, For, captured hath been his city -- at the extremity.

Jeremiah 51:31 Additional Translations ...