Matthew 10:19-20

But when they turn you over [to them], do not worry about how to speak or what you should say. For you will be told [i.e., by God] what to say at the right time.

Luke 12:11-12

And when people bring you in front of synagogue assemblies and rulers and authorities [i.e., for judgment], do not worry about how to speak or what you should say.

Luke 21:14-15

Determine in your hearts, therefore, not to plan ahead how you will answer them [when interrogated],

2 Corinthians 8:16

But I thank God for putting the same concern [that I have] for you in the heart of Titus.

Philippians 2:13

for it is God who is at work in you, both to motivate the desire and to carry out what pleases Him.

James 1:16-18

[So], do not be deceived, my dearly loved brothers.

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 I thank God for putting the same concern [that I have] for you in the heart of Titus.
Philippians 2:13
for it is God who is at work in you, both to motivate the desire and to carry out what pleases Him.
James 1:16
[So], do not be deceived, my dearly loved brothers.

And

Matthew 10:19
But when they turn you over [to them], do not worry about how to speak or what you should say. For you will be told [i.e., by God] what to say at the right time.
Luke 12:11
And when people bring you in front of synagogue assemblies and rulers and authorities [i.e., for judgment], do not worry about how to speak or what you should say.
Luke 21:14
Determine in your hearts, therefore, not to plan ahead how you will answer them [when interrogated],