'Lord's' in the Bible

And he asked Pharaoh's chamberlains that were with him in custody in his lord's house, saying, Why are your faces so sad to-day?

Behold, the money that we found in our sacks' mouths we have brought again to thee from the land of Canaan; and how should we steal out of thy lord's house silver or gold?

With whomsoever of thy servants it is found, let him die; and we also will be my lord's bondmen.

And Judah said, What shall we say to my lord? what shall we speak, and how justify ourselves? God has found out the iniquity of thy servants; behold, we are my lord's bondmen, both we, and he in whose hand the cup has been found.

Then Judah came near to him, and said, Ah! my lord, let thy servant, I pray thee, speak a word in my lord's ears, and let not thine anger burn against thy servant; for thou art even as Pharaoh.

then whoever comes forth from the doors of my house to meet me, when I return victorious from the Ammonites, shall be the LORD's, and I will offer him up for a burnt offering."

And David said to Abishai, Now shall Sheba the son of Bichri do us more harm than did Absalom. Take thou thy lord's servants, and pursue after him, lest he get him fortified cities and escape our sight.

And Joab said, Jehovah add to his people, how many soever they be, a hundredfold: are they not all, my lord O king, my lord's servants? why does my lord require this thing? why should he become a trespass to Israel?

Rolling thee up completely, he will roll thee as a ball into a wide country: there shalt thou die, and there shall be the chariots of thy glory, O shame of thy lord's house!

And now, our God, hearken to the prayer of thy servant, and to his supplications, and cause thy face to shine upon thy sanctuary that is desolate, for the Lord's sake.