Matthew 10:19-20

but when they take you. into custody, be not sollicitous, how or what ye shall speak, for at the very instant you shall be inspir'd what to say.

Luke 12:11-12

when you are brought into the synagogues, and before magistrates and rulers, be not sollicitous what to say in your own defence;

Luke 21:14-15

fix it therefore in your mind, not to think beforehand about your defence.

2 Corinthians 8:16

But thanks be to God, who disposed Titus to be so industrious for you.

Philippians 2:13

for it is God that influences your desires and endeavours, out of his benevolence to you.

James 1:16-18

Don't be deluded, my 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, who disposed Titus to be so industrious for you.
Philippians 2:13
for it is God that influences your desires and endeavours, out of his benevolence to you.
James 1:16
Don't be deluded, my brethren;

And

Matthew 10:19
but when they take you. into custody, be not sollicitous, how or what ye shall speak, for at the very instant you shall be inspir'd what to say.
Luke 12:11
when you are brought into the synagogues, and before magistrates and rulers, be not sollicitous what to say in your own defence;
Luke 21:14
fix it therefore in your mind, not to think beforehand about your defence.