Luke 21:15

for I will give you a mouth and wisdom, which all your adversaries shall be utterly unable to contradict or resist.

Acts 6:10

And they could not resist the wisdom and the spirit with which he spoke.

Luke 12:12

for the Holy Ghost will teach you at that very hour what ye ought to say.

Luke 24:45

Then opened he thoroughly their understanding, that they should understand the scriptures,

Acts 2:4

And they were all filled with the Holy Ghost, and they began to speak with other tongues, as the Spirit gave them power to express themselves.

Acts 4:8-13

Then Peter, filled with the Holy Ghost, said unto them, Ye rulers of the people, and elders of Israel,

Acts 4:31-33

And while they were praying, the place in which they were assembled was shaken; and they were all filled with the Holy Ghost, and they spake the word of God with boldness.

Acts 24:25

And as he discoursed of righteousness, and temperance, and the judgment which is ready to be revealed, Felix being greatly terrified, replied, Go, for the present, I will some time hence take another opportunity of calling for thee.

Acts 26:28

Then Agrippa said to Paul, Almost thou persuadest me to be a Christian.

Ephesians 6:19

and for me that there may be given unto me utterance to open my mouth with boldness, to make known the mystery of the gospel,

Colossians 4:3-4

praying also at the same time for us, that God may open to us a door for the word, that I may speak the mystery of Christ, for which I am also in chains:

2 Timothy 4:16-17

At my first apology no man stood by me, but all forsook me: (may it not be imputed to them!)

James 1:5

But if any man of you be deficient in wisdom, let him ask it of God, who giveth to all men liberally, and upbraideth not and it shall be given him.

Treasury of Scripture Knowledge

Summary

For I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay nor resist.

Bible References

Which

Acts 6:10
And they could not resist the wisdom and the spirit with which he spoke.
Acts 24:25
And as he discoursed of righteousness, and temperance, and the judgment which is ready to be revealed, Felix being greatly terrified, replied, Go, for the present, I will some time hence take another opportunity of calling for thee.
Acts 26:28
Then Agrippa said to Paul, Almost thou persuadest me to be a Christian.
2 Timothy 4:16
At my first apology no man stood by me, but all forsook me: (may it not be imputed to them!)

General references

Luke 12:12
for the Holy Ghost will teach you at that very hour what ye ought to say.
Luke 14:6
And they were unable to answer him in opposition to these things.
Acts 21:37
And when he was just ready to be carried into the fortress, Paul said to the military tribune, May I be permitted to speak a word to thee? And he said, Dost thou know Greek?
1 Corinthians 1:27
but the foolish things of this world hath God elected, that he might confound the wise; and the feeble things of the world hath God elected, that he might confound the mighty;