'Master' in the Bible

And Jonathan called out after the boy, “Hurry, be quick, do not stay!” So Jonathan’s boy picked up the arrow and came back to his master.

He said to his men, “The Lord forbid that I should do this thing to my master, the Lord’s anointed, to put out my hand against him, since he is the anointed of the Lord.”

But Nabal answered David’s servants and said, “Who is David? And who is the son of Jesse? There are many servants today, each of whom is breaking away from his master.

But one of Nabal’s young men told Abigail, Nabal’s wife, “Listen, David sent messengers out of the wilderness to bless (greet) our master, and he shouted at them [in contempt].

Now then, know this and consider what you should do, for evil is [already] planned against our master and against all his household; but he is such a worthless and wicked man that one cannot speak [reasonably] to him.”

This thing that you have done is not good. As the Lord lives, you surely deserve to die, because you have not guarded your lord, the Lord’s anointed. And now, see where the king’s spear is, and the jug of water that was by his head.”

But the Philistine commanders were angry with Achish and they said to him, “Make this man return, so that he may go back to his place where you have assigned him, and do not let him go down to battle with us, or in the battle he may [turn and] become our adversary. For how could David reconcile himself to his lord [Saul]? Would it not be with the heads of these [Philistine] men?

David said to him, “To whom do you belong, and where are you from?” He said, “I am a young man from Egypt, a servant of an Amalekite; and my master abandoned me [as useless] when I fell sick three days ago.

Then David said to him, “Will you take me down to this band [of raiders]?” And he said, “Swear to me by God that you will not kill me or turn me over to the hand of my master, and I will bring you down to this band.”