Why do we only comment on Christianity?

Some have asked as to ‘why’ do we ‘only’ comment on our ‘own religion’ (which is Christianity).

Why don’t we comment on religions other than Christianity?

It’s because the verse below ‘only allows’ us to ‘judge other Christians’ (e.g. share toward doctrinal truths) but to make “no” mention of ‘those outside Christianity’ (whom God will judge) as it is written:

“After all, do I have any business judging those who are outside [the Christian faith]? Isn’t it your business to judge those who are inside [the Christian faith]?” (1 Corinthians 5:12)

And the next verse:

“But God will judge those outside. “Expel the evil out from among yourselves.” (1 Corinthians 5:13)