Should I refer to Jesus as "Jesus" or as "the Christ"? I was told that I should call Jesus by his name and not use the word "Christ, or "Jesus Christ" As you know it means the anointed one or messiah. Rationale for only calling him Jesus: after he was resurrected he then became lord, no longer the messenger or "Christ."
I'm not sure who told you it is not correct to refer to Jesus Christ as, Jesus Christ. Or that He should be referred to as only Jesus. You are correct in that Christ is translated from the Greek to mean the Anointed one or Messiah. That is His 'title' if you will. It is who He is. So why wouldn't you refer to Him as such? Although He is not with us physically right now, He still is with us and operates through the Holy Spirit for the same reasons as when He was physically here. His role or purpose has not changed because of His resurrection. He was Lord when He was here on earth;
The voice of one crying in the wilderness: “ Prepare the way of the LORD; Make straight in the desert A highway for our God. Is. 40:3
and He is Lord of Lords at the right hand of the Father now in Heaven.
"These shall make war with the Lamb, and the Lamb shall overcome them: for he is Lord of lords, and King of kings: and they that are with him are called, and chosen, and faithful." Rev. 17:14
If anyone thinks that He is no longer a 'messenger', just because He was resurrected, then in my opinion, that couldn't be further from the truth. He is our messenger, our hope and our Savior. So, in my opinion, it is no more 'incorrect' to refer to him as Jesus Christ as it is for anyone to refer to you by your full name and title.