Spurgeon in Counsel For Christian Workers
His way went wrong after his thought had gone wrong. You cannot deviate from truth without ere long, in some measure, at any rate, deviating from practical righteousness. This man had erred from right acting because he had erred from right believing.
Suppose a man shall imbibe a doctrine which leads him to think little of Christ, he will soon have little faith in him, and become little obedient to him, and so will wander into self-righteousness or licentiousness….
It is vain for us to imagine that holiness will be readily produced from erroneous as from truthful doctrine. Do men gather grapes of thorns, or figs of thistles? The facts of history prove the contrary. When truth is dominant morality and holiness are abundant; but when error comes to the front godly living retreats in shame.