The problem of sin is in man's thinking, which is why God says the problem is in the heart—in the mind. Humans are limited to thinking what is in their minds. If we have God's Word in our minds—along with the Holy Spirit—then there is a good chance that our minds will begin to change, to become circumcised, as it were—to be purified, to become holy as God is holy. God says, "My thoughts are higher than yours, better than yours—greater than the east is from the west." Yet, we have to take steps in that direction to begin thinking as He does.
A person who is not holy will not see God because they will not think as He does. Along the same lines, He will not recognize Himself in any of them! So, until the heart is changed, nothing will change. The change begins by taking in the Word of God on a daily basis and applying it in our lives.
John W. Ritenbaugh
The Covenants, Grace, and Law (Part 8)