Your Heresy Will Stay Your Feet is a Campaign achievement in Halo: Reach. This achievement is obtained when the player kills the Sangheili Zealot in the 5th Campaign mission, Tip of the Spear, before it can escape.
- The name of this achievement is a reference to a quote by the Prophet of Truth when speaking to Thel 'Vadamee at the end of his trial in Halo 2; "Soon the Great Journey shall begin. But when it does, the weight of your heresy will stay your feet. And you shall be left behind."