'Lord's' in the Bible

It came about that from the time he made him overseer in his house and over all that he owned, the Lord blessed the Egyptian’s house on account of Joseph; thus the Lord’s blessing was upon all that he owned, in the house and in the field.

Behold, the money which we found in the mouth of our sacks we have brought back to you from the land of Canaan. How then could we steal silver or gold from your lord’s house?

With whomever of your servants it is found, let him die, and we also will be my lord’s slaves.”

So Judah said, “What can we say to my lord? What can we speak? And how can we justify ourselves? God has found out the iniquity of your servants; behold, we are my lord’s slaves, both we and the one in whose possession the cup has been found.”

Then Judah approached him, and said, “Oh my lord, may your servant please speak a word in my lord’s ears, and do not be angry with your servant; for you are equal to Pharaoh.

When that year was ended, they came to him the next year and said to him, “We will not hide from my lord that our money is all spent, and the cattle are my lord’s. There is nothing left for my lord except our bodies and our lands.