[A_perfect_lady]

I am being very serious. Mysterious language is the very first line of defense when employed to conceal a bunch of hokum. Haven't you noticed how fond university professors of humanism are of obscure language?

If you cannot put into plain language exactly what the prophecies of Passover, First Fruits, and Pentecost are, that should alert you immediately that you are dealing with something suspect.

[editor-surveyor]

The OT scriptures are not in any way “mysterious.”

Just read them and learn.