2 Peter 2:1-2 "There were also false prophets among the people, just as there will be false teachers among you, who will secretly introduce destructive heresies and, denying the Master who bought them, will bring swift destruction upon themselves. Many will follow their debauchery, and because of them, the Way of truth will be blasphemed. Romans 6:23 : "The wages of sin is death".
It's like the time I visited an airport chapel that actually had a scheduled daily Mass for travelers AND the Blessed Sacrament present in a tabernacle - BUT they also had a "prayer rug corner" for Muslims. Some came in while I was saying the breviary and I resolved NOT to leave until they did to ensure no profanation. Luckily I had a long layover so I silently prayed the Jesus Prayer as they did their "rituals" in the back.