You do not need to walk in sinless perfection in order to have a good conscience. You just need to walk in the light.
from Desiring God http://rss.desiringgod.org/link/10732/15944295/how-can-i-have-a-good-conscience
via DG
You do not need to walk in sinless perfection in order to have a good conscience. You just need to walk in the light.