The passage really states:
I will give you a new heart and put a new spirit in you; I will remove from you your heart of stone and give you a heart of flesh. – Ezekiel 36:26
But do we really believe this happened when we are “born again,” “made alive in Christ” or “Regenerated.” Most of modern gospel preaching has little to do with repentance and more to do with covering our butts with some sort of fire insurance policy. Know the “Jesus” password and get into heaven, is what it sounds like to me. But Scripture does not talk about salvation this way. We are united to Christ by faith and the flip side of faith is turning away from sin. But we hear very little exhortation to repent or turn from our sins. It is almost offensive to suggest such a thing, especially to church going people, in church.
Abraham as an example of faith was willing to sacrifice his only son, trusting that God knew best and that if his son died God would still restore him to life and fulfill his promise. It seems many Christians are unwilling to “sacrifice” anything, much less their sins, for the sake of God. Have we come so close to easy-believeism that the Gospel only means coming to Christ for forgiveness and acceptance of our old selves. Scripture seems clear that we leave the old behind casting it off and away. To think we can keep hold of our sins is a denial of regeneration. One does not need a new life, birth or heart if they can be forgiven and left as is. But we are given a new heart, we are told we are new creatures, let us live for Christ as such.
Within many of John Calvin’s prayers is the petition that we would learn from God to abhor our sins so much that we would stop sinning. If you have the new heart, then it beats for God. Now you will not reach perfection in this life, but Christ-likeness will be your goal. Don’t just be sorry about sin, but fight it, throw it away, and strive to turn from it. Entertaining and leaning on sin as if it’s under your control, and something you’re forgiven of anyway, it’s just another face of sin convincing you that it’s not that bad of a thing, just like Adam must have felt about eating a simple piece of fruit. Turn from sin. Flee from it. Look to God. Think about God and things above and live a life that pleases Him.