We are tempted, he said, to mediocrity, and when Christians become mediocre, “it is their ruin, because the heart cools and they become lukewarm.” Francis reminded his hearers that Jesus used strong language to describe this sort of Christians: “Because you are lukewarm, I will vomit you out of my mouth.”
He's drawing from a passage in Revelation, one which I find very profound, significant, and sobering.
Does he understand that was written to a church ..not individuals ?