The Importance of God's Sanctification Surgery

God's great work of sanctification that is making us holy works mainly from the inside out. If he's going to change John Piper's attitudes and inclinations so that they can form more closely to Christ, he must know my heart. He would be a bad surgeon if he could not see the cancer he was working on. God also puts a guard at our lips so that an internal thought does not get expressed and hurt more people.