Luke 21:15

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

Jeremiah 1:9

And Jehovah put forth his hand and touched my mouth; and Jehovah said unto me, Behold, I have put my words in thy mouth.

Acts 6:10

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

Exodus 4:11-12

And Jehovah said to him, Who gave man a mouth? or who maketh dumb, or deaf, or seeing, or blind? have not I, Jehovah?

Proverbs 2:6

For Jehovah giveth wisdom; out of his mouth come knowledge and understanding.

Luke 12:12

for the Holy Spirit shall teach you in the hour itself what should be said.

Luke 24:45

Then he opened their understanding to 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 to them to speak forth.

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 shook, and they were all filled with the Holy Spirit, and spoke the word of God with boldness.

Acts 24:25

And as he reasoned concerning righteousness, and temperance, and the judgment about to come, Felix, being filled with fear, answered, Go for the present, and when I get an opportunity I will send for thee;

Acts 26:28

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

Ephesians 6:19

and for me in order that utterance may be given to me in the opening of my mouth to make known with boldness the mystery of the glad tidings,

Colossians 4:3-4

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

2 Timothy 4:16-17

At my first defence no man stood with me, but all deserted me. May it not be imputed to them.

James 1:5

But if any one of you lack wisdom, let him ask of God, who gives to all freely and reproaches not, and it shall 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
And they were not able to resist the wisdom and the Spirit with which he spoke.
Acts 24:25
And as he reasoned concerning righteousness, and temperance, and the judgment about to come, Felix, being filled with fear, answered, Go for the present, and when I get an opportunity I will send for thee;
Acts 26:28
And Agrippa said to Paul, In a little thou persuadest me to become a Christian.
2 Timothy 4:16
At my first defence no man stood with me, but all deserted me. May it not be imputed to them.

General references

Exodus 4:12
And now go, and I will be with thy mouth, and will teach thee what thou shalt say.
Luke 12:12
for the Holy Spirit shall teach you in the hour itself what should be said.
Luke 14:6
And they were not able to answer him to these things.
Acts 21:37
But as he was about to be led into the fortress, Paul says to the chiliarch, Is it allowed me to say something to thee? And he said, Dost thou know Greek?
1 Corinthians 1:27
But God has chosen the foolish things of the world, that he may put to shame the wise; and God has chosen the weak things of the world, that he may put to shame the strong things;