Proverbs 31:8

And Jonathan spake good of David unto Saul his father, and said unto him, Let not the king sin against his servant, against David; because he hath not sinned against thee, and because his works have been to thee-ward very good: For he did put his life in his hand, and slew the Philistine, and the LORD wrought a great salvation for all Israel: thou sawest it, and didst rejoice: wherefore then wilt thou sin against innocent blood, to slay David without a cause? And Saul hearkened unto the voice of Jonathan: and Saul sware, As the LORD liveth, he shall not be slain. And Jonathan called David, and Jonathan showed him all those things. And Jonathan brought David to Saul, and he was in his presence, as in times past.

And Jonathan answered Saul his father, and said unto him, Wherefore shall he be slain? what hath he done?

Then Ahimelech answered the king, and said, And who is so faithful among all thy servants as David, which is the king's son in law, and goeth at thy bidding, and is honorable in thine house?

Then Mordecai commanded to answer Esther, Think not with thyself that thou shalt escape in the king's house, more than all the Jews. For if thou altogether holdest thy peace at this time, then shall there enlargement and deliverance arise to the Jews from another place; but thou and thy father's house shall be destroyed: and who knoweth whether thou art come to the kingdom for such a time as this? Then Esther bade them return Mordecai this answer, Go, gather together all the Jews that are present in Shushan, and fast ye for me, and neither eat nor drink three days, night or day: I also and my maidens will fast likewise; and so will I go in unto the king, which is not according to the law: and if I perish, I perish.

The princes refrained talking, and laid their hand on their mouth.

Wisdom is too high for a fool: he openeth not his mouth in the gate.