King James Bible
Since ye seek a proof of Christ speaking in me, which to you-ward is not weak, but is mighty in you.

New King James Version
since you seek a proof of Christ speaking in me, who is not weak toward you, but mighty in you.

American Standard Version
seeing that ye seek a proof of Christ that speaketh in me; who to you-ward is not weak, but is powerful in you:

Berean Study Bible
since you are demanding proof that Christ is speaking through me. He is not weak in dealing with you, but is powerful among you.

Douay-Rheims Bible
Do you seek a proof of Christ that speaketh in me, who towards you is not weak, but is mighty in you?

English Revised Version
seeing that ye seek a proof of Christ that speaketh in me; who to you-ward is not weak, but is powerful in you:

World English Bible
seeing that you seek a proof of Christ who speaks in me; who toward you is not weak, but is powerful in you.

Young's Literal Translation
since a proof ye seek of the Christ speaking in me, who to you is not infirm, but is powerful in you,

2 Corinthians 13:3 Additional Translations ...