The whole bundle of the popish religion is made up of designs and contrivances to pacify conscience without Christ; all described by the apostle, Rom. 10:3.
By this means men satisfy themselves that their state and condition is good, seeing they do that which is a work good in itself, and they do not do it to be seen. They know they would have the work done in sincerity, and so are hardened in a kind of self-righteousness.
– John Owen –
from The Mortification of Sin in Believers, volume 6 of Works, page 37