Judah refers to himself as "your servant." This is a formal way of speaking to someone with more authority. This can be stated in first person. AT: "let me, your servant" (See: [[rc://en/ta/man/translate/figs-123person]])
Here "my master" refers to Joseph. This is a formal way of speaking to someone with more authority. This can be stated in second person. AT: "to you" (See: [[rc://en/ta/man/translate/figs-123person]])
Being angry is spoke of as if it were a burning fire. AT: "please do not be angry with me, your servant" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Judah compares the master to Pharaoh to emphasize the great power that the master has. He is also implying that he does want the master to become angry and execute him. AT: "for you are as powerful as Pharaoh and could have your soldiers kill me" (See: [[rc://en/ta/man/translate/figs-explicit]])