It mightily alters and changes a man – Thomas Brooks

“Thanks be to God that, though you used to be slaves to sin, you wholeheartedly obeyed the form of teaching to which you were entrusted.” Romans 6:17

Certainly, gospel-obedience is a grace of much worth, and of great force upon the whole man; for when it is once wrought in the heart, it works a conformity to all God’s holy will.

That obedience which springs from saving faith is a transforming obedience. It mightily alters and changes a man:
from impurity to purity,
from sin to sanctity,
from unrighteousness to righteousness,
from earthly-mindedness to heavenly-mindedness,
from pride to humility,
from hypocrisy to sincerity, etc.

Those who are not savingly changed, are still in the gall of bitterness, and bond of iniquity.