Christ will be Master of the heart...

Christ will be Master of the heart, and sin must be mortified... If your life is unholy your heart is unchanged; and if your heart is unchanged you are an unsaved person. If the Saviour has not sanctified you, renewed you, given you a hatred of sin and a love of holiness, He has done nothing in you of a saving character. The grace which does not make a man better than others is a worthless counterfeit. Christ saves His people not in their sins, but from them.
...CH Spurgeon image