'Sir' in the Bible

So the servants of the householder came and said unto him, Sir, didst not thou sow good seed in thy field? from whence then hath it tares?

And he came to the second, and said likewise. And he answered and said, I go, sir: and went not.

Saying, Sir, we remember that that deceiver said, while he was yet alive, After three days I will rise again.