King James Bible
Behold, all ye yourselves have seen it; why then are ye thus altogether vain?

New King James Version
Surely all of you have seen it; Why then do you behave with complete nonsense?

American Standard Version
Behold, all ye yourselves have seen it; Why then are ye become altogether vain?

Berean Study Bible
Surely all of you have seen it for yourselves. Why then do you keep up this empty talk?

Douay-Rheims Bible
Behold you all know it, and why do you speak vain things without cause?

English Revised Version
Behold, all ye yourselves have seen it; why then are ye become altogether vain?

World English Bible
Behold, all of you have seen it yourselves; why then have you become altogether vain?

Young's Literal Translation
Lo, ye -- all of you -- have seen, And why is this -- ye are altogether vain?

Job 27:12 Additional Translations ...