Luke 21:15

for I will give you a mouth, and wisdom, which all your opposers shall not be able to gainsay or withstand.

Acts 6:10

And they were not able to resist the wisdom and the spirit with which he spoke.

Luke 12:12

for the Holy Spirit shall teach you in that hour what you ought to say.

Luke 24:45

Then he opened their mind, that they might understand the scriptures,

Acts 2:4

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

Acts 4:8-13

Then Peter, filled with the Holy Spirit, said to them: Rulers of the people, and elders of Israel,

Acts 4:31-33

And when they had prayed, the place in which they were assembled was shaken; and they were all filled with the Holy Spirit, and spoke the word of God with boldness.

Acts 24:25

And as he reasoned of righteousness, temperance, and the judgment to come, Felix trembled, and answered: For the present withdraw; when I have a convenient season, I will call for you.

Acts 26:28

Then Agrippa said to Paul: You almost persuade me to be a Christian.

Ephesians 6:19

and for me, that speech may be given me, in opening my mouth with boldness, that I may make known the mystery of the gospel,

Colossians 4:3-4

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

2 Timothy 4:16-17

At my first defense no one stood by me, but all forsook me; may it not be laid to their charge:

James 1:5

Now, if any of you lack wisdom, let him ask of God, who gives to all liberally, and upbraids 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 were not able to resist the wisdom and the spirit with which he spoke.
Acts 24:25
And as he reasoned of righteousness, temperance, and the judgment to come, Felix trembled, and answered: For the present withdraw; when I have a convenient season, I will call for you.
Acts 26:28
Then Agrippa said to Paul: You almost persuade me to be a Christian.
2 Timothy 4:16
At my first defense no one stood by me, but all forsook me; may it not be laid to their charge:

General references

Luke 12:12
for the Holy Spirit shall teach you in that hour what you ought to say.
Luke 14:6
And they were not able to give him an answer to these things.
Acts 21:37
But as Paul was about to be led into the fortress, he said to the officer: May I speak to you? He replied: Do you understand Greek?
1 Corinthians 1:27
but God has chosen the foolish things of the world, that he may bring to shame the wise; and the weak things of the world has God chosen, that he may put to shame the strong;