This situation that is one man against thugs that were killing everyone else. They are thugs that have zero inclination to be moved by his claiming that he is a Christian. In fact that's a given reason they would kill him. Notice he is a business man and citizen in an area that forbids Christian proselytising that acknowledged his faith with his name given afterwards. It's not as if he's out of danger now.
So are you saying that lying was the only option he had?
" It's not as if he's out of danger now."
I never said he was.