But what about the term Lord? Again the explanation in the Greek for the word used for "Lord," in Acts 2:36 is "κύριος (pronounced) kurios koo'-ree-os (and) From κῦρος kuros (supremacy); supreme in authority, that is, (as noun) controller; by implication Mr. (as a respectful title): - God, Lord, master, Sir." The same word was used in Acts 9:5 by the Apostle Paul after he had been knocked to the ground on the road to Damascus when he asked, "Who art thou Lord? Interestingly the same word was used in John 20:28 by the apostle who we have come to know as "doubting Thomas," when having seen the resurrected Christ said, "My Lord and my God."
The Lord Jesus asked the Pharisees in Matthew 22:41-45 how King David could call God his Lord, (yes the same Greek word was used), if he was to be his son? To me the bottom line is when Peter preached that first Christian message to the Jews that day, he said that "God hath made that same Jesus, whom ye have crucified, both Lord and Christ." he was saying to his hearers that the one they had crucified at Calvary was both God Almighty and the promised Messiah.
My friend, if you have never acknowledged Jesus Christ as your Supreme Lord and Christ or Messiah, do so today before it is too late! He is the only one whom God has ordained to be the Saviour of the world. Repent to God and turn away from your sins. Put your faith in the Lord Jesus and be baptised in Jesus name for the forgivness of those sins. If you will do so, God has promised to fill you with His Holy Spirit.