# should proclaim

This is describing something that has not happened and should not happen. AT: "would proclaim" or "were to proclaim" (See: [[rc://en/ta/man/translate/figs-hypo]])

# other than the one

"different from the gospel" or "different from the message"

# let him be cursed

"God should punish that person forever." If your language has a common way of calling a curse down on someone, you should use that.