Teacher

And when Jesus finished these sayings, the crowds were astonished at his teaching, for he was teaching them as one who had authority, and not as their scribes. (Matthew 7:28-29, ESV) 

Lord

Lord/LORD

This very day in King David’s hometown a Savior was born for you. He is Christ the Lord. (Luke 2:11, CEV)

This sentence announcing the birth of Jesus is very familiar to many, although the version is a little different. I am using it to introduce that final word, “Lord”. This word is an example of one which requires translators and publishers to interpret for us.

An interaction from the last days of Jesus’ time on earth contains the same word used twice but with a difference.

Then, surrounded by the Pharisees, Jesus asked them a question: “What do you think about the Messiah? Whose son is he?”
They replied, “He is the son of David.”
Jesus responded, “Then why does David, speaking under the inspiration of the Spirit, call the Messiah ‘my Lord’? For David said,
‘The LORD said to my Lord,
Sit in the place of honor at my right hand
    until I humble your enemies beneath your feet.’[a]
Since David called the Messiah ‘my Lord,’ how can the Messiah be his son?”
No one could answer him. And after that, no one dared to ask him any more questions. Matthew 22:41-46 (NLT)

Almost word for word, all three synoptic Gospels include Jesus quoting the Psalm (110), as part of a conversation between himself and Pharisees in Jerusalem during that final week. In that moment at least, that particular quotation, as Jesus used it, was a conversation stopper! Nothing more to be said! Surely that was an unforgettable and loaded moment.