The crux of the gospel message is not a call to rededication, but a call to repentance. If one's previous commitment did not keep him walking in obedience, a re-commitment is no more likely to make him faithful. The proper response to disobedience is not a commitment to try harder, but brokenness and repentance for rejecting the will of the Almighty God. God looks for surrender to His will, not commitment to carry it out. Rather than asking church members to repeatedly promise to try harder, churches must call their people to repent before a Holy God.
Many church members are uncomfortable with spiritual brokenness and repentance.
When the Holy Spirit works in peoples' lives, convicting them of their sin, churches often do not know how to respond. We are uncomfortable with tears and anguish of a sinner under conviction by the Holy Spirit. Rather than allowing people to respond to what God is telling them, we often seek to immediately intervene. The structure of a worship service can mitigate against the Spirit's working. Bringing the service abruptly to a close in order to announce the upcoming potluck dinner or church council meeting can utterly quench the work that God began in the service.