I've been to a Catholic funeral - co-worker's mother. The co-worker wasn't born again, and the priest was not either - and she was so disappointed that the priest didn't comfort her family more. It was obvious to me - and he kept looking at me like he knew I knew .. it was very strange.
One of his comments suggested that we could never be sure we were going to heaven. I was so outraged that I wanted to jump up and yell out the scripture - but I restrained myself.
Aside from the fact that he was flat-out wrong, to make such a comment at a funeral is cruelly inappropriate.