Luke 21:15

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

Jeremiah 1:9

And with that, the LORD stretched out his hand, and touched my mouth, and said moreover unto me, "Behold, I put my words in thy mouth,

Acts 6:10

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

Exodus 4:11-12

And the LORD said unto him, "Who hath made man's mouth, or who hath made the dumb or the deaf, the seeing or the blind? Have not I, the LORD?

Proverbs 2:6

For it is the LORD that giveth wisdom, out of his mouth cometh knowledge and understanding.

Luke 12:12

For the holy ghost shall teach you in the same hour, what ye ought to say."

Luke 24:45

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

Acts 2:4

and they were all filled with the holy ghost, and began to speak with other tongues, even as the spirit gave them utterance.

Acts 4:8-13

Then Peter, full of the holy ghost, said unto them, "Ye rulers of the people, and elders of Israel,

Acts 4:31-33

And as soon as they had prayed, the place moved where they were assembled together, and they were all filled with the holy ghost, and they spake the word of God boldly.

Acts 24:25

And as he preached of righteousness, temperance, and judgment to come; Felix trembled, and answered, "Thou hast done enough at this time: depart. When I have a convenient time, I will send for thee."

Acts 26:28

Agrippa said unto Paul, "Somewhat thou bringest me in mind for to become Christian."

Ephesians 6:19

and for me, that utterance may be given unto me, that I may open my mouth boldly, to utter the secrets of the gospel,

Colossians 4:3-4

praying also for us, that God open unto us the door of utterance, that we may speak the mystery of Christ - wherefore I am in bonds -

2 Timothy 4:16-17

At my first answering for myself, no man assisted me, but all forsook me. I pray God, that it may not be laid to their charges:

James 1:5

If any of you lack wisdom, let him ask of God, which giveth to all men indifferently and casteth no man in the teeth; 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 spake.
Acts 24:25
And as he preached of righteousness, temperance, and judgment to come; Felix trembled, and answered, "Thou hast done enough at this time: depart. When I have a convenient time, I will send for thee."
Acts 26:28
Agrippa said unto Paul, "Somewhat thou bringest me in mind for to become Christian."
2 Timothy 4:16
At my first answering for myself, no man assisted me, but all forsook me. I pray God, that it may not be laid to their charges:

General references

Exodus 4:12
Go therefore and I will be with thy mouth and teach thee what thou shalt say."
Luke 12:12
For the holy ghost shall teach you in the same hour, what ye ought to say."
Luke 14:6
And they could not answer him again to that.
Acts 21:37
And as Paul should have been carried into the castle; He said unto the high captain, "May I speak unto thee?" Which said, "Canst thou speak Greek?
1 Corinthians 1:27
But God hath chosen the foolish things of the world, to confound the wise. And God hath chosen the weak things of the world, to confound things which are mighty.