A prudent man conceals knowledge: but the heart of fools proclaims foolishness.
A talebearer reveals secrets: but he that is of a faithful spirit conceals the matter.
Curse not the king, no not even in your thought; and curse not the rich in your bedchamber: for a bird of the air shall carry the voice, and that which has wings shall tell the matter.
And the men answered her, Our life for yours, if you utter not this our business. And it shall be, when the LORD has given us the land, that we will deal kindly and truly with you.
And she lay at his feet until the morning: and she rose up before one could recognize another. And he said, Let it not be known that a woman came into the floor.
1 Samuel 27:11
And David saved neither man nor woman alive, to bring tidings to Gath, saying, Lest they should tell on us, saying, So did David, and so will be his custom all the while he dwells in the country of the Philistines.
2 Samuel 1:20
Tell it not in Gath, publish it not in the streets of Askelon; lest the daughters of the Philistines rejoice, lest the daughters of the uncircumcised triumph.
Declare it not at Gath, weep not at all: in the house of Aphrah roll yourself in the dust.
2 Kings 9:15
But king Joram had returned to be healed in Jezreel of the wounds which the Syrians had given him, when he fought with Hazael king of Syria.) And Jehu said, If this is your mind, then let none go forth nor escape out of the city to go to tell it in Jezreel.
1 Samuel 21:2
And David said unto Ahimelech the priest, The king has charged me with a business, and has said unto me, Let no man know any thing of the business about which I send you, and what I have commanded you: and I have directed my young men to such and such a place.
Then said Zedekiah unto Jeremiah, Let no man know of these words, and you shall not die.
So the chief captain then let the young man depart, and charged him, See that you tell no man that you have showed these things to me.
Debate your cause with your neighbor himself; and disclose not a secret to another: