2 Corinthians 13:3

since you seek a proof in me of Christ speaking, who is not weak to you but powerful in you;

Matthew 10:20

for it is not you that speak, but the Spirit of your Father that speaks in you.

Matthew 18:18-20

I tell you truly, that whatever you bind on the earth shall be bound in heaven, and whatever you unbind on the earth shall be unbound in heaven.

Luke 21:15

for I will give you a mouth and wisdom which all your enemies shall not be able to resist or dispute.

1 Corinthians 5:4-5

in the name of our Lord Jesus you being assembled together and my spirit with the power of our Lord Jesus

1 Corinthians 9:1-3

AM I not a freeman? Am I not an apostle? Have I not seen Jesus Christ our Lord? Are not you my work in the Lord?

2 Corinthians 2:6

Sufficient for such a one is this rebuke by many;

2 Corinthians 2:10

But whom you favor I also will favor; for what favor I have shown, if I have shown any favor, has been for your sakes, in the presence of Christ,

2 Corinthians 3:1-3

Do we begin again to commend ourselves? or need we, as some, commendatory epistles to you or from you?

2 Corinthians 10:4

for the arms of our warfare are not of flesh, but mighty with God to the pulling down of strongholds,

2 Corinthians 10:8-10

For if I should even boast some of our authority which the Lord gave for your edification, and not for your destruction, I should not be ashamed.

2 Corinthians 12:12

The signs of an apostle were performed among you with all patience, in miracles, and prodigies, and mighty works.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Ye seek

2 Corinthians 10:8
For if I should even boast some of our authority which the Lord gave for your edification, and not for your destruction, I should not be ashamed.

Christ

2 Corinthians 2:10
But whom you favor I also will favor; for what favor I have shown, if I have shown any favor, has been for your sakes, in the presence of Christ,
Matthew 10:20
for it is not you that speak, but the Spirit of your Father that speaks in you.
Matthew 18:18
I tell you truly, that whatever you bind on the earth shall be bound in heaven, and whatever you unbind on the earth shall be unbound in heaven.
Luke 21:15
for I will give you a mouth and wisdom which all your enemies shall not be able to resist or dispute.
1 Corinthians 5:4
in the name of our Lord Jesus you being assembled together and my spirit with the power of our Lord Jesus

Which

2 Corinthians 2:6
Sufficient for such a one is this rebuke by many;
2 Corinthians 3:1
Do we begin again to commend ourselves? or need we, as some, commendatory epistles to you or from you?
2 Corinthians 12:12
The signs of an apostle were performed among you with all patience, in miracles, and prodigies, and mighty works.
1 Corinthians 9:1
AM I not a freeman? Am I not an apostle? Have I not seen Jesus Christ our Lord? Are not you my work in the Lord?

General references

2 Corinthians 13:6
But I hope you will know that we are not reprobates.