Martyn Lloyd-Jones
It is an essential part of the gospel that conviction must always precede conversion; the gospel of Christ condemns before it releases.

And I will give them one heart, and a new spirit I will put within them. I will remove the heart of stone from their flesh and give them a heart of flesh, that they may walk in my statutes and keep my rules and obey them. And they shall be my people, and I will be their God.
Ezekiel 11:19-20