In his book I Surrender, Patrick Morley writes that the church’s integrity problem is in the misconception "that we can add Christ to our lives, but not subtract sin. It is a change in belief without a change in behavior." He goes on to say, "It is revival without reformation, without repentance."
The sure test of the quality of any supposed change of heart will be found in its permanent effects. ’By their fruits you shall know them’ is as applicable to the right method of judging ourselves as of judging others. Whatever, therefore, may have been our inward experience, whatever joy or sorrow we may have felt, unless we bring forth fruits meet for repentance, our experience will profit us nothing.
Repentance is incomplete unless it leads to confession and restitution in cases of injury; unless it causes us to forsake not merely outward sins, which others notice, but those which lie concealed in the heart; unless it makes us choose the service of God and live not for ourselves but for Him.