'Sir' in the Bible

The servants of the householder came and said to him, 'Sir, didn't you sow good seed in your field? Where did this darnel come from?'

He came to the second, and said the same thing. He answered, 'I go, sir,' but he didn't go.

saying, "Sir, we remember what that deceiver said while he was still alive: 'After three days I will rise again.'