Commenting on Mark 7:20-21

There is a deep truth in these words which is frequently overlooked. Our original sinfulness and natural inclination to evil are seldom sufficiently considered. The wickedness of men is often attributed to bad examples, bad company, peculiar temptations, or the snares of the devil. It seems forgotten that every man carries within him a fountain of wickedness. We need not bad company to teach us, and no devil to tempt us, in order to run into sin. We have within us the beginning of every sin under heaven.