en_tn/act/26/23.md

that Christ must suffer

You can make explicit that Christ must also die. Alternate translation: "that Christ must suffer and die" (See: rc://en/ta/man/translate/figs-explicit)

to rise

to come back to life

from the dead

The phrase "the dead" refers to the spirits of people who have died. To rise from among them speaks of becoming alive again.

he would proclaim light

"he would proclaim the message about the light." To tell people about how God saves people is spoken of as if a person were speaking about the light. Alternate translation: "he would proclaim the message about how God saves people" (See: rc://en/ta/man/translate/figs-metaphor)