BluesBrother,
Interestingly, people blindly accept what Paul wrote, and remember some famous OT verses as support. Interestingly, the so-called messianic verses actually do not speak about Messiah. For example,
1) Psalm 22. It’s all about a person who describes himself as “I am a worm and not a man,” who knew God only from this birth “from my mother’s womb you have been my God” (Ps 22: 6, 10).
2) Similarly, Isaiah 53 is all about a man who “had no form, majesty or beauty” (Isaiah 53:2) which can never fit the description of one chosen by God Almighty, about whom people thought was “smitten by God.” (Isaiah 53:4). “They made his grave with the wicked and with a rich man in his death” (Isaiah 53:9) [Jesus was crucified along with two criminals, not with a “rich man”]