# What happens if the Church begins to teach heresies?

**URL:** https://forum.catholictalk.net/t/what-happens-if-the-church-begins-to-teach-heresies/430
**Category:** Catholic Living
**Created:** [May 5, 2023, 6:18pm UTC](https://forum.catholictalk.net/t/what-happens-if-the-church-begins-to-teach-heresies/430 "2023-05-05T18:18:18Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Cade\_One](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.catholictalk.net/cade_one/32/34_2.png) [@Cade\_One](https://forum.catholictalk.net/u/Cade_One)
#### Post date: [May 5, 2023, 6:18pm UTC](https://forum.catholictalk.net/t/what-happens-if-the-church-begins-to-teach-heresies/430/1 "2023-05-05T18:18:19Z")

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“What, if some novel contagion seek to infect not merely an insignificant portion of the Church, but the whole? Then it will be his care to cleave to antiquity, which at this day cannot possibly be seduced by any fraud of novelty.” — [Saint Vincent of Lérins](https://www.newadvent.org/fathers/3506.htm)

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### Author: ![TeresaAvila](https://avatars.discourse-cdn.com/v4/letter/t/c57346/32.png) [@TeresaAvila](https://forum.catholictalk.net/u/TeresaAvila)
#### Post date: [May 12, 2023, 5:10pm UTC](https://forum.catholictalk.net/t/what-happens-if-the-church-begins-to-teach-heresies/430/2 "2023-05-12T17:10:34Z")

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We have an obligation as the Church Militant to speak up in truth