Luke 21:15

For I will give you a mouth and wisdom, which all they opposed to you shall not be able to contradict nor withstand.

Jeremiah 1:9

And Jehovah will stretch forth his hand and touch upon my mouth: and Jehovah will say to me, Behold, I gave my words into thy mouth.

Acts 6:10

And they were not able to withstand the wisdom and the spirit by which he spake.

Exodus 4:11-12

And Jehovah will say to him, Who set a mouth to man? or who set the dumb, or deaf, or the seeing, or blind? is it not I Jehovah?

Proverbs 2:6

For Jehovah will give wisdom: from his mouth knowledge and understanding.

Luke 12:12

For the Holy Spirit will teach you in that hour what ye must say.

Luke 24:45

Then opened he their understanding, to understand the writings,

Acts 2:4

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

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 they having prayed, the place was shaken in which they were gathered together; and they were all filled with the Holy Spirit, and spake the word of God with freedom of speech.

Acts 24:25

And he discoursing of justice, and temperance, and judgment about to be, Felix being terrified, answered, Having now, go; having taken time, I will recall thee.

Acts 26:28

And Agrippa said to Paul, In a little thou persuadest me to be a Christian.

Ephesians 6:19

And for me, that the word might be given me, in the opening of my mouth in freedom of speech, to make known the mystery of the good news,

Colossians 4:3-4

Praying together also for us, that God would open to us a door of the word, to speak the mystery of Christ, by which also I was bound;

2 Timothy 4:16-17

In my first defence none was present with me, but all forsook me; (may it not be reckoned to them.)

James 1:5

If any of you is forsaken of wisdom, let him ask of God, giving to all plainly, blaming 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 withstand the wisdom and the spirit by which he spake.
Acts 24:25
And he discoursing of justice, and temperance, and judgment about to be, Felix being terrified, answered, Having now, go; having taken time, I will recall thee.
Acts 26:28
And Agrippa said to Paul, In a little thou persuadest me to be a Christian.
2 Timothy 4:16
In my first defence none was present with me, but all forsook me; (may it not be reckoned to them.)

General references

Exodus 4:12
And now go, and I will be with thy mouth, and teach thee what thou shalt say.
Luke 12:12
For the Holy Spirit will teach you in that hour what ye must say.
Luke 14:6
And they were not able to answer him in turn to these things.
Acts 21:37
And being about to be brought into the camp, Paul says to the captain of a thousand, Is it lawful for me to speak anything to thee? and he said, Hast thou knowledge in Greek?
1 Corinthians 1:27
But the foolish things of the world, has God chosen that he might shame the wise; and the weak things of the world has God chosen that he might shame things strong;