In his book, Precious Remedies Against Satan’s Devices, Thomas Brooks notes that there are three (3) essential aspects of true repentance:
First, “The formal act of repentance is a changing and converting” (p.57). In other words it involves a turning of one’s life from darkness to light; it is a conversion. It is no mere oblique change of direction in a person’s life.
Second, “The subject changed and converted is the whole man” (ibid). It involves not just a change of the outward actions, but also of the heart, the innermost part of a person. Not just the practice, but the very person is also changed.
Third, this conversion of heart and life is a change (or turning) “from sin to God” (ibid). Brooks writes, The heart must be changed from the state and power of sin, the life from the acts of sin, but both unto God; the heart to be under his power in a state of grace, the life to be under his rule in all new obedience” (ibid).
The point he makes here is to show what a difficult thing it is to truly repent. In fact, it is humanly impossible to convert one’s self. He writes, “It is not in the power of any mortal to repent at pleasure” (p.56). God Himself must grant and work repentance in the heart and life of a sinner (2 Timothy 2:25).
Satan often deceives sinners into thinking that they are more than able to repent whenever they want (as if it were within their own power and ability to do so), and so leads men and women to keep putting off repentance until a later date. But Brooks warns that “it is as hard a thing to repent as it is to make a world, or raise the dead” (p.60). In other words, it takes the power of God Himself. No wonder Hebrews 13:3 warns us about being “hardened by the deceitfulness of sin.” It is a difficult (even impossible) thing as it is for a man to repent and turn to God, but even more difficult if one continues to put it off and so becomes even more hardened in sin and unbelief!
May God in His mercy grant repentance to many, to the praise of His glorious grace.