Do you seek evidence that it is Christ who speaks in me, who is not weak with you, but is powerful with you
Other versions
King James Version
Since ye seek a proof of Christ speaking in me, which to you-ward is not weak, but is mighty in you.English Standard Version
since you seek proof that Christ is speaking in me. He is not weak in dealing with you, but is powerful among you.New International Version
since you are demanding proof that Christ is speaking through me. He is not weak in dealing with you, but is powerful among you.