Matthew 10:19-20

But when they have delivered you up, have no anxiety as to how you shall speak or what you shall say; for at that very time it shall be given you what to say;

Luke 12:11-12

And when they are bringing you before synagogues and magistrates and governors, do not anxiously ponder the manner or matter of your defence, nor what you are to say;

Luke 21:14-15

"Make up your minds, however, not to prepare a defence beforehand,

2 Corinthians 8:16

But thanks be to God that He inspires the heart of Titus with the same deep interest in you;

Philippians 2:13

For it is God Himself whose power creates within you the desire to do His gracious will and also brings about the accomplishment of the desire.

James 1:16-18

Do not be deceived, my dearly-loved brethren.

Treasury of Scripture Knowledge

Summary

The preparations of the heart in man, and the answer of the tongue, is from the LORD.

Bible References

Preparations

2 Corinthians 8:16
But thanks be to God that He inspires the heart of Titus with the same deep interest in you;
Philippians 2:13
For it is God Himself whose power creates within you the desire to do His gracious will and also brings about the accomplishment of the desire.
James 1:16
Do not be deceived, my dearly-loved brethren.

And

Matthew 10:19
But when they have delivered you up, have no anxiety as to how you shall speak or what you shall say; for at that very time it shall be given you what to say;
Luke 12:11
And when they are bringing you before synagogues and magistrates and governors, do not anxiously ponder the manner or matter of your defence, nor what you are to say;
Luke 21:14
"Make up your minds, however, not to prepare a defence beforehand,