'Sir' in the Bible

And the servants of the master of the house came and said to him, Sir, did you not put good seed in your field? how then has it evil plants?

And he came to the second and said the same. And he made answer and said, I go, sir: and went not.

Saying, Sir, we have in mind how that false man said, while he was still living, After three days I will come again from the dead.