and maybe you could say the Angel of the Lord manifested to 1st century Judaeans as Christ ?
Is there any tradition of using the name "Jesus" to refer to the human person & human nature of Christ, and "Christ" to refer to the Divine person & Divine nature (= Word of God per John 1:1) ?
If so, would you mind saying "Christ was manifested to (say) Abraham", when God revealed His plan by which "all the nations would be blessed" (paraphrase) through Abraham? Presuming Jesus Christ fulfills that prophesy, wouldn't it be reasonable to guess that Abraham was then & there shown some foreknowledge of the Messiah, so explaining why Jesus said "Abraham saw my day & rejoiced" (John 8:56) ?
A lot to address and I'll try what I can or with what I know.
The meaning of the title "Christ" as I find it from a Google search is "anointed one". Here's the full explanation as given and if it can be trusted...I believe it can as I have heard this before, but I like to find Scripture to prove things out. Here it is...
"
Christ" is not a surname, it's a title. It's appended to the Greek form of Yeshua's name as part of a claim that he was the Messiah, which in Greek is Χριστός (Christos). This in turn is the Greek form of the Hebrew מָשִׁיחַ (Māšîaḥ) meaning "anointed one".
Checking Scripture after remembering a few things I find this good passage to back up the above:
Matthew 16:16:
And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
and...
Luke 4:41:
And devils also came out of many, crying out, and saying, Thou art Christ the Son of God. And he rebuking them suffered them not to speak: for they knew that he was Christ.
So I say, yes, you are correct in saying Jesus refers to the human person and nature while Christ is referring to His divine nature...we see this in not only the title Christ, but also He is Emmanuel.
Jesus was manifested to Abraham as one of the three men which many believe are the three persons of the Trinity...beyond that all I can say that although there are three persons there is still only one God. I believe God spoke as the one God when conversing to Abraham only because Scripture does not render that passage as Angel of the Lord. I believe there is a distinction made for a reason.
addressing this comment now:
"Christ was manifested to (say) Abraham", when God revealed His plan by which "all the nations would be blessed" (paraphrase) through Abraham? Presuming Jesus Christ fulfills that prophesy, wouldn't it be reasonable to guess that Abraham was then & there shown some foreknowledge of the Messiah, so explaining why Jesus said "Abraham saw my day & rejoiced"
I believe that when Jesus made this statement He spoke about the fact that Abraham was/is in heaven and was quite well aware at that point that He, the Messiah, was born into the world.
I hope this helps...we all continue to learn from one another.