Matthew 10:19

But when they deliver you up, be not anxious how or what ye should speak, for it will be given you in that hour what ye will speak.

Exodus 4:12

Now therefore go, and I will be with thy mouth, and teach thee what thou shall speak.

Matthew 6:25

Because of this I say to you, be not anxious about your life, what ye may eat, or what ye may drink, nor yet for your body, what ye may wear. Is not the life more than the food, and the body than the clothing?

Mark 13:11-13

But when they lead you, delivering you up, be not anxious before what ye might speak, nor meditate. But whatever may be given you in that hour, speak ye this, for ye are not who speak, but the Holy Spirit.

Luke 12:11

And when they bring you to the synagogues, and the principle positions, and the offices of authority, be not anxious how or what ye should answer in defense, or what ye should say,

2 Timothy 4:17

But the Lord stood by me and strengthened me, so that through me the sacred message might be brought to fullness, and all the Gentiles might hear. And I was rescued out of the mouth of the lion.

Exodus 4:15

And thou shall speak to him, and put the 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 LORD said to me, Say not, I am a child. For to whomever I shall send thee thou shall go, and whatever I shall command thee thou shall speak.

Jeremiah 1:9

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

Daniel 3:16-18

Shadrach, Meshach, and Abednego answered and said to the king, O Nebuchadnezzar, we have no need to answer thee in this matter.

Matthew 6:31

Be not therefore anxious, saying, What may we eat? or, What may we drink? or, What may we wear?

Matthew 6:34

Be not therefore anxious for the morrow, for the morrow will be anxious about things of itself. Sufficient for the day is the evil of it.

Luke 21:12-17

But before all these things, they will throw their hands on you, and will persecute you, delivering you up to the synagogues and prisons, being brought before kings and rulers for my name's sake.

Acts 4:8-14

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

Acts 5:29-33

And Peter and the apostles having answered, they said, We must obey God rather than men.

Acts 6:10

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

Acts 26:2-11

Concerning all things of which I am accused by the Jews, king Agrippa, I consider myself blessed, being about to make my defense before thee today.

Philippians 4:6

Be anxious about nothing, but in everything by prayer and supplication with thankfulness make your requests known to God.

James 1:5

And if any of you lacks wisdom, let him ask from God who gives to all generously and not reproaching, and it will be given to him.

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 lead you, delivering you up, be not anxious before what ye might speak, nor meditate. But whatever may be given you in that hour, speak ye this, for ye are not who speak, but the Holy Spirit.
Luke 12:11
And when they bring you to the synagogues, and the principle positions, and the offices of authority, be not anxious how or what ye should answer in defense, or what ye should say,
Luke 21:14
Settle therefore in your hearts not to premeditate to make defense.

It shall

Exodus 4:12
Now therefore go, and I will be with thy mouth, and teach thee what thou shall speak.
Jeremiah 1:7
But LORD said to me, Say not, I am a child. For to whomever I shall send thee thou shall go, and whatever I shall command thee thou shall speak.
Daniel 3:16
Shadrach, Meshach, and Abednego answered and said to the king, O Nebuchadnezzar, we have no need to answer thee in this matter.
Acts 4:8
Then Peter being filled with Holy Spirit, said to them, Rulers of the people, and elders of Israel,
Acts 5:29
And Peter and the apostles having answered, they said, We must obey God rather than men.
Acts 6:10
And they were not able to withstand the wisdom and the Spirit by which he spoke.
Acts 26:2
Concerning all things of which I am accused by the Jews, king Agrippa, I consider myself blessed, being about to make my defense before thee today.
2 Timothy 4:17
But the Lord stood by me and strengthened me, so that through me the sacred message might be brought to fullness, and all the Gentiles might hear. And I was rescued 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 shall speak.
Luke 12:11
And when they bring you to the synagogues, and the principle positions, and the offices of authority, be not anxious how or what ye should answer in defense, or what ye should say,
Luke 21:14
Settle therefore in your hearts not to premeditate to make defense.
Acts 21:37
and as Paul was going to be brought into the fort, he says to the chief captain, Is it permitted for me to speak to thee? And he said, Thou know Greek?