Matthew 10:19

But when they deliver you up, take no thought how or what ye shall speak, for it shall be given you in that same hour what ye shall speak.

Exodus 4:12

Now therefore go and I will be with thy mouth and teach thee what thou shalt say.

Matthew 6:25

Therefore I say unto you, Take no thought for your life, what ye shall eat or what ye shall drink, nor yet for your body, what ye shall put on. Is not the life more than food, and the body than raiment?

Mark 13:11-13

But when they shall bring you to deliver you up, do not premeditate beforehand what ye shall speak, neither think ye regarding it, but whatever shall be given you in that hour, that speak ye, for it is not ye that speak, but the Holy Spirit.

Luke 12:11

And when they bring you unto the synagogues and unto magistrates and powers, take ye no thought how or what thing ye shall answer or what ye shall say;

2 Timothy 4:17

But the Lord stood with me and strengthened me, that by me the preaching might be fully known and that all the Gentiles might hear, and I was delivered out of the mouth of the lion.

Exodus 4:15

And thou shalt speak unto him and put words in his mouth; and I will be with thy mouth and with his mouth and will teach you what ye shall do.

Jeremiah 1:7

But the LORD said unto me, Do not say, I am a child; for thou shalt go to all that I shall send thee, and whatsoever I command thee thou shalt speak.

Jeremiah 1:9

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

Daniel 3:16-18

Shadrach, Meshach, and Abednego, answered and said to King Nebuchadnezzar, We are not careful to answer thee in this matter.

Matthew 6:31

Therefore take no thought, saying, What shall we eat? or, What shall we drink? or, With what shall we be clothed?

Matthew 6:34

Take therefore no thought for the morrow, for the morrow shall take thought for the things of itself. Sufficient unto the day is the affliction thereof.

Luke 21:12-17

But before all these, they shall lay their hands on you and persecute you, delivering you up to the synagogues and into prisons, being brought before kings and governors for my name's sake.

Acts 4:8-14

Then Peter, filled with the Holy Spirit, said unto them, Ye princes of the people and elders of Israel,

Acts 5:29-33

Then Peter and the other apostles answered and said, We must persuade God rather than men.

Acts 6:10

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

Acts 26:2-11

I esteem myself blessed, King Agrippa, because I shall answer for myself this day before thee concerning all the things of which I am accused of the Jews,

Philippians 4:6

Be anxious for nothing, but in every thing by prayer and supplication with thanksgiving, let your requests be made known unto God.

James 1:5

And if any of you lacks wisdom, let them ask of God (who gives abundantly to all, and without reproach), and it shall be given them.

Treasury of Scripture Knowledge

Summary

But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak.

Bible References

When

Mark 13:11
But when they shall bring you to deliver you up, do not premeditate beforehand what ye shall speak, neither think ye regarding it, but whatever shall be given you in that hour, that speak ye, for it is not ye that speak, but the Holy Spirit.
Luke 12:11
And when they bring you unto the synagogues and unto magistrates and powers, take ye no thought how or what thing ye shall answer or what ye shall say;
Luke 21:14
Settle it therefore in your hearts not to meditate before what ye shall answer;

It shall

Exodus 4:12
Now therefore go and I will be with thy mouth and teach thee what thou shalt say.
Jeremiah 1:7
But the LORD said unto me, Do not say, I am a child; for thou shalt go to all that I shall send thee, and whatsoever I command thee thou shalt speak.
Daniel 3:16
Shadrach, Meshach, and Abednego, answered and said to King Nebuchadnezzar, We are not careful to answer thee in this matter.
Acts 4:8
Then Peter, filled with the Holy Spirit, said unto them, Ye princes of the people and elders of Israel,
Acts 5:29
Then Peter and the other apostles answered and said, We must persuade God rather than men.
Acts 6:10
And they were not able to resist the wisdom and the Spirit by which he spoke.
Acts 26:2
I esteem myself blessed, King Agrippa, because I shall answer for myself this day before thee concerning all the things of which I am accused of the Jews,
2 Timothy 4:17
But the Lord stood with me and strengthened me, that by me the preaching might be fully known and that all the Gentiles might hear, and I was delivered out of the mouth of the lion.

General references

Exodus 4:12
Now therefore go and I will be with thy mouth and teach thee what thou shalt say.
Luke 12:11
And when they bring you unto the synagogues and unto magistrates and powers, take ye no thought how or what thing ye shall answer or what ye shall say;
Luke 21:14
Settle it therefore in your hearts not to meditate before what ye shall answer;
Acts 21:37
And as Paul was to be led into the fortress, he said unto the tribunal, May I speak unto thee? Who said, Canst thou speak Greek?