Luke 21:15

for I will give you a mouth and wisdom which none of your adversaries will be able to resist or contradict.

Acts 6:10

But they could not stand against the wisdom and the Spirit with which he spoke.

Luke 12:12

for the Holy Spirit will teach you in that very hour what you ought to say."

Luke 24:45

Then he opened their minds, so they could understand the Scriptures.

Acts 2:4

And they were all filled with the Holy Spirit and began to speak in 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,

Acts 4:31-33

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

Acts 24:25

But as he was discussing righteousness, self-control and the judgment to come, Felix became frightened and said, "Go away for the present, and when I find time I will summon you."

Acts 26:28

And Agrippa said to Paul, "In a short time you think to persuade me to become a Christian!"

Ephesians 6:19

and also pray for me, that in the opening of my mouth, utterance may be given me so that I will fearlessly make known the mystery of the gospel,

Colossians 4:3-4

And pray for us as well, that God may open a door to us for the word, so that we may proclaim the mystery of Christ, for which I am in chains,

2 Timothy 4:16-17

At my first defense no one came to my support, but all deserted me; may it not be counted against them.

James 1:5

If any of you lacks wisdom, let him ask of God, who gives to all generously and without reproach, and it will be given to 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
But they could not stand against the wisdom and the Spirit with which he spoke.
Acts 24:25
But as he was discussing righteousness, self-control and the judgment to come, Felix became frightened and said, "Go away for the present, and when I find time I will summon you."
Acts 26:28
And Agrippa said to Paul, "In a short time you think to persuade me to become a Christian!"
2 Timothy 4:16
At my first defense no one came to my support, but all deserted me; may it not be counted against them.

General references

Luke 12:12
for the Holy Spirit will teach you in that very hour what you ought to say."
Luke 14:6
And they could not reply to this.
Acts 21:37
As Paul was about to be brought into the barracks, he said to the commander, "May I say something to you?" And he said, "Do you know Greek?
1 Corinthians 1:27
But God chose the foolish things of the world to shame the wise, God chose the weak things of the world to shame the strong,