GOD'S WORD® Translation
I've sent my coworkers so that when we brag that you're ready, we can back it up.

American Standard Version
But I have sent the brethren, that our glorying on your behalf may not be made void in this respect; that, even as I said, ye may be prepared:

Berean Study Bible
But I am sending the brothers in order that our boasting about you in this matter should not prove empty, but that you will be prepared, just as I said.

Douay-Rheims Bible
Now I have sent the brethren, that the thing which we boast of concerning you, be not made void in this behalf, that (as I have said) you may be ready:

English Revised Version
But I have sent the brethren, that our glorying on your behalf may not be made void in this respect; that, even as I said, ye may be prepared:

King James Bible
Yet have I sent the brethren, lest our boasting of you should be in vain in this behalf; that, as I said, ye may be ready:

World English Bible
But I have sent the brothers that our boasting on your behalf may not be in vain in this respect, that, just as I said, you may be prepared,

Young's Literal Translation
and I sent the brethren, that our boasting on your behalf may not be made vain in this respect; that, according as I said, ye may be ready,

2 Corinthians 9:3 Additional Translations ...