Mark 13:11

But when they lead you to deliver you up, be not anxious beforehand, nor premeditate what you shall speak; but what ever shall be given you in that hour, that do you speak; for it is not you that speak, but the Holy Spirit.

Matthew 10:19-21

But when they deliver you up, be not anxious how or what you shall speak; for that which you shall speak shall be given you in that hour:

Luke 12:11-12

When they bring you to the synagogues, and to rulers and authorities, be not anxious how or what you shall answer, or what you shall say;

Luke 21:14-15

Therefore, determine in your hearts not to meditate beforehand what you shall answer;

Acts 6:10

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

Matthew 10:17

But beware of men: for they will deliver you to the councils, and scourge you in their synagogues;

Mark 13:9

These are the beginning of sorrows. But take heed to yourselves; for they will deliver you up to councils, and you will be scourged in the synagogues; and you will stand before governors and kings for my sake, for a testimony against them.

John 3:27

John answered and said: A man can receive nothing unless it be given to him from heaven.

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 3:13

The God of Abra ham, and of Isaac, and of Jacob, the God of our fathers, has glorified his Son Jesus, whom you delivered up, and whom you rejected in the presence of Pilate, when he was determined to release him.

Acts 4:8-22

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

Acts 4:31

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 6:15

And all that sat in the Sanhedrin, looking earnestly upon him, saw his face that it was like the face of an angel.

Acts 7:55

But being full of the Holy Spirit, he looked earnestly up into heaven, and saw the glory of God, and Jesus standing at the right hand of God;

1 Corinthians 2:13

which things also we speak, not in words taught by man's wisdom, but in words taught by the Spirit, comparing spiritual things with spiritual things.

Ephesians 3:5

which, in other generations, was not made known to the sons of men, as it is now revealed to his holy apostles and prophets by the Spirit;

Ephesians 6:19-20

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,

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.

1 Peter 1:12

to whom it was revealed, that, not for themselves, but for us, they ministered the things that are now preached to you by those who have made known to you the gospel, through the Holy Spirit sent down from heaven; into which things angels desire to look.

Treasury of Scripture Knowledge

Summary

But when they shall lead you, and deliver you up, take no thought beforehand what ye shall speak, neither do ye premeditate: but whatsoever shall be given you in that hour, that speak ye: for it is not ye that speak, but the Holy Ghost.

General references

Bible References

And deliver

Mark 13:9
These are the beginning of sorrows. But take heed to yourselves; for they will deliver you up to councils, and you will be scourged in the synagogues; and you will stand before governors and kings for my sake, for a testimony against them.
Matthew 10:17
But beware of men: for they will deliver you to the councils, and scourge you in their synagogues;
Acts 3:13
The God of Abra ham, and of Isaac, and of Jacob, the God of our fathers, has glorified his Son Jesus, whom you delivered up, and whom you rejected in the presence of Pilate, when he was determined to release him.

Shall be

John 3:27
John answered and said: A man can receive nothing unless it be given to him from heaven.
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,
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.

But

1 Corinthians 2:13
which things also we speak, not in words taught by man's wisdom, but in words taught by the Spirit, comparing spiritual things with spiritual things.
Ephesians 3:5
which, in other generations, was not made known to the sons of men, as it is now revealed to his holy apostles and prophets by the Spirit;
1 Peter 1:12
to whom it was revealed, that, not for themselves, but for us, they ministered the things that are now preached to you by those who have made known to you the gospel, through the Holy Spirit sent down from heaven; into which things angels desire to look.

General references

Luke 12:11
When they bring you to the synagogues, and to rulers and authorities, be not anxious how or what you shall answer, or what you shall say;
Luke 21:14
Therefore, determine in your hearts not to meditate beforehand what you shall answer;