A prudent man keeps his knowledge, but the hearts of fools proclaim foolishness.
One who brings gossip betrays a confidence, but one who is of a trustworthy spirit is one who keeps a secret.
Don't curse the king, no, not in your thoughts; and don't curse the rich in your bedroom: for a bird of the sky may carry your voice, and that which has wings may tell the matter.
The men said to her, "Our life for yours, if you don't talk about this business of ours; and it shall be, when Yahweh gives us the land, that we will deal kindly and truly with you."
She lay at his feet until the morning. She rose up before one could discern another. For he said, "Let it not be known that the woman came to the threshing floor."
1 Samuel 27:11
David saved neither man nor woman alive, to bring them to Gath, saying, "Lest they should tell of us, saying, 'So did David, and so has been his way all the while he has lived in the country of the Philistines.'"
2 Samuel 1:20
Don't tell it in Gath. Don't publish it in the streets of Ashkelon, lest the daughters of the Philistines rejoice, lest the daughters of the uncircumcised triumph.
Don't tell it in Gath. Don't weep at all. At Beth Ophrah I have rolled myself in the dust.
2 Kings 9:15
but king Joram was returned to be healed in Jezreel of the wounds which the Syrians had given him, when he fought with Hazael king of Syria.) Jehu said, "If this is your thinking, then let no one escape and go out of the city, to go to tell it in Jezreel."
1 Samuel 21:2
David said to Ahimelech the priest, "The king has commanded me a business, and has said to me, 'Let no man know anything of the business about which I send you, and what I have commanded you; and I have appointed the young men to such and such a place.'
Then Zedekiah said to Jeremiah, Let no man know of these words, and you shall not die.
So the commanding officer let the young man go, charging him, "Tell no one that you have revealed these things to me."
Debate your case with your neighbor, and don't betray the confidence of another;