The "Jews" is a synecdoche that represents the leaders of the Jews who opposed Jesus. AT: "The Jewish leaders said among themselves" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
# the dispersion
This refers to the Jews that were spread all across the Greek world, outside of Palestine.
This "word" is a metonym which stands for the meaning of the message that Jesus had shared, which the Jewish leaders had failed to understand. AT: "What is he talking about when he said" (See: [[rc://en/ta/man/translate/figs-metonymy]])