New International Version
And the gospel must first be preached to all nations.

American Standard Version
And the gospel must first be preached unto all the nations.

Berean Study Bible
And the gospel must first be proclaimed to all the nations.

Douay-Rheims Bible
And unto all nations the gospel must first be preached.

English Revised Version
And the gospel must first be preached unto all the nations.

King James Bible
And the gospel must first be published among all nations.

World English Bible
The Good News must first be preached to all the nations.

Young's Literal Translation
and to all the nations it behoveth first that the good news be proclaimed.

Mark 13:10 Additional Translations ...