en_tn_condensed/mrk/14/21.md

For the Son of Man will go as it is written about him

Here Jesus refers to the scriptures prophesying about his death. If you have a polite way to talk about death in your language, use it here. Alternate translation: "For the Son of Man will die in the way that the scriptures say"

it is written

"the scripture says" or "as they wrote in the scripture"

through whom the Son of Man is betrayed

This can be stated more directly. Alternate translation: "who betrays the Son of Man" (See: rc://en/ta/man/jit/figs-explicit)