'Please' in the Bible

Jonadab replied to him, "Lie down on your bed and pretend to be sick. When your father comes in to see you, say to him, 'Please let my sister Tamar come in so she can fix some food for me. Let her prepare the food in my sight so I can watch. Then I will eat from her hand.'"

So Amnon lay down and pretended to be sick. When the king came in to see him, Amnon said to the king, "Please let my sister Tamar come in so she can make a couple of cakes in my sight. Then I will eat from her hand."

So David sent Tamar to the house saying, "Please go to the house of Amnon your brother and prepare some food for him."

So the Tekoan woman went to the king. She bowed down with her face to the ground in deference to him and said, "Please help me, O king!"

Then the woman said, "Please permit your servant to speak to my lord the king about another matter." He replied, "Tell me."

He said to the king, "Don't think badly of me, my lord, and don't recall the sin of your servant on the day when you, my lord the king, left Jerusalem! Please don't call it to mind!

David felt guilty after he had numbered the army. David said to the Lord, "I have sinned greatly by doing this! Now, O Lord, please remove the guilt of your servant, for I have acted very foolishly."