'Master' in the Bible

Therefore now let your hands be strengthened, and be ye valiant: for your master Saul is dead, and also the house of Judah have anointed me king over them.

Then the king called to Ziba, Saul's servant, and said unto him, All that pertained to Saul and to all his house have I given unto thy master's son.

And thou shalt till the land for him, thou, and thy sons, and thy servants; and thou shalt bring in the fruits , that thy master's son may have bread to eat: but Mephibosheth thy master's son shall eat bread alway at my table. Now Ziba had fifteen sons and twenty servants.

Ziba said to the king, "According to all that my master the king commands his servant, so your servant will do." So Mephibosheth [was] eating at his table as one of the sons of the king.

But the commanders of the {Ammonites} said to Hanun their master, "{In your opinion}, [is] David honoring your father because he has sent condolences to you? [Is] it not in order to search the city, to spy it out, and to overthrow it [that] David sent his servants to you?"

But Uriah slept [at] the entrance of the king's house with all the servants of his master and did not go down to his house.

Uriah answered David, “The ark, Israel, and Judah are dwelling in tents, and my master Joab and his soldiers are camping in the open field. How can I enter my house to eat and drink and sleep with my wife? As surely as you live and by your life, I will not do this!”

and I gave thee thy master's house, and thy master's wives into thy bosom, and gave thee the house of Israel and of Judah; and if that had been too little, I would have added unto thee such and such things.

And the king said, And where is thy master's son? And Ziba said unto the king, Behold, he abideth at Jerusalem; for he said, To-day will the house of Israel restore me the kingdom of my father.

Joab replied to the king, "May the Lord your God make the army a hundred times larger right before the eyes of my lord the king! But why does my master the king want to do this?"