You shall not go around as a gossip among your people, and you are not to act against the life of your neighbor [with slander or false testimony]; I am the Lord.

Revealeth

Argue your case with your neighbor himself [before you go to court];
And do not reveal another’s secret,

For lack of wood the fire goes out,
And where there is no whisperer [who gossips], contention quiets down.

Moreover, in those days many letters went from the nobles of Judah to Tobiah, and Tobiah’s letters came to them.

He

A faithful and trustworthy witness will not lie,
But a false witness speaks lies.

So the men said to her, “Our lives for yours if you do not tell [anyone about] this business of ours; then when the Lord gives us the land we will show you kindness and faithfulness [and keep our agreement with you].”

Then all the princes (court officials) came to Jeremiah and asked him [just what King Zedekiah had anticipated they would ask], and he reported to them in accordance with all that the king had commanded. So they stopped questioning him, since the conversation [with the king] had not been overheard.

General references

“You shall not testify falsely [that is, lie, withhold, or manipulate the truth] against your neighbor (any person).