en_tn/rev/13/07.md

authority was given to him

AT: "God gave authority to the beast" (See: rc://en/ta/man/translate/figs-activepassive)

everyone whose name was not written

AT: "those whose names the Lamb did not write" or "those whose names Jesus did not write"

Lamb

This refers to Jesus. See how you translated this in Revelation 5:6.

who was slaughtered

AT: "whom the people slaughtered"