Indwelling Sin
A man, in mind and affections, may depart from that which yet will not depart from him, yea, a man in mind may depart from that which yet will dwell in him as long as he lives.
For instance, there are many diseases that cleave to men, from which in their minds they willingly depart; yea, their greatest disquietment is, that so bad a distemper will abide by them; and might they but have their desire accomplished, they would be as far therefrom as the ends of the earth are asunder: and while they are found to continue together, the mind departs therefrom, and is gone either to God or to physicians for help and deliverance from it.
And thus it is with the saint, and should be with every one that by way of profession nameth the name of Christ, Rom. 7; he should depart from his indwelling sin with his mind: “With his mind he should serve the law of God.”