'Servant's' in the Bible

And you didn't stop there, O Lord God! You have also spoken about the future of your servant's family. Is this your usual way of dealing with men, O Lord God?

Now be willing to bless your servant's dynasty so that it may stand permanently before you, for you, O sovereign Lord, have spoken. By your blessing may your servant's dynasty be blessed on into the future!"

The king said, "Did Joab put you up to all of this?" The woman answered, "As surely as you live, my lord the king, there is no deviation to the right or to the left from all that my lord the king has said. For your servant Joab gave me instructions. He has put all these words in your servant's mouth.