... for the Christ to suffer these things and enter into his glory?

Supper at Emmaus, Caravaggio, Brera, Milan, 1606

Only the Gospel of Luke has the narration of the encounter between the resurrected Jesus and the disciples at Emmaus (Luke 24:13-35). Central to this account is that Jesus explains to the two disciples how the life, suffering and death of the Messiah were inscribed in "all the scriptures", "Moses and all the prophets". This is the question with which Jesus precedes his "interpretation" of the Scriptures for the benefit of the disciples:

“Wasn’t it necessary for the Christ to suffer these things and enter into his glory?” (Luke 24:26 - bolding by MdS)

The Greek verb translated with "enter" is eiserchomai, which definitely and only means "enter". There is no hint whatsoever, in the verse, of any form of "pre-existence" of the Messiah, let alone "eternity".

Then he appeared to the Apostles:

₄₄ Then he said to them, “These are my words that I spoke to you while I was still with you, that everything written about me in the law of Moses and the prophets and the psalms must be fulfilled.” ₄₅ Then he opened their minds so they could understand the scriptures, ₄₆ and said to them, “Thus it stands written that the Christ would suffer and would rise from the dead on the third day, ₄₇ and repentance for the forgiveness of sins would be proclaimed in his name to all nations, beginning from Jerusalem.”  (Luke 24:44-47).

Again, no hint whatsoever of any form of "pre-existence" of the Messiah, let alone "eternity".

Shouldn't John 8:58, shouldn't John 17:5 be interpreted in the light of Luke 24:26?