'Master's' in the Bible

And he said, Blessed be the LORD God of my master Abraham, who hath not left destitute my master of his mercy and his truth: I being in the way, the LORD led me to the house of my master's brethren.

And Sarah my master's wife bare a son to my master when she was old: and unto him hath he given all that he hath.

And she say to me, Both drink thou, and I will also draw for thy camels: let the same be the woman whom the LORD hath appointed out for my master's son.

And I bowed down my head, and worshipped the LORD, and blessed the LORD God of my master Abraham, which had led me in the right way to take my master's brother's daughter unto his son.

Behold, Rebekah is before thee, take her, and go, and let her be thy master's son's wife, as the LORD hath spoken.

And it came to pass after these things, that his master's wife cast her eyes upon Joseph; and she said, Lie with me.

But he refused, and said unto his master's wife, Behold, my master wotteth not what is with me in the house, and he hath committed all that he hath to my hand;