'My Lord the King' in the Bible

Then one of his servants said, "No, my lord the king, but Elisha the prophet who is [in] Israel tells the king of Israel things which you speak {in your own bedchamber}."

It happened that the king of Israel [was] crossing over on the wall, and a woman called out to him, saying, "Help, my lord the king!"

It happened that as he [was] telling the king how he had restored the dead to life, suddenly the woman whose son he had restored to life [was] crying out to the king about her household and about her field. Then Gehazi said, "My lord the king, this [is] the woman and this is her son whom Elisha restored to life!"

Now therefore, I pray thee, give pledges to my lord the king of Assyria, and I will deliver thee two thousand horses, if thou be able on thy part to set riders upon them.