[Ten'oio]

I don't think that Aerandir was making some sort of connection with Elves as a superior race, and Christians sharing the same likeness. Christians are far from superior-->they are constantly taught to show humility.
(ex: when Jesus washed other's feet)
I think that Aerandir was trying to make more of a connection concerning the Elve's "leaving" middle earth for a better life elsewhere, which can be compared with the Christian belief of "leaving" this life on earth and going to live a better life in heavan and what not.