Since the grace of regeneration is monergistic and requires no cooperation from us, its efficacy lies in itself and not in us. We can do nothing to make it effective; we can do nothing to make it ineffective. We are as passive with respect to our own regeneration as Lazarus was to his resurrection, and as the universe was to its creation. We were not cooperating agents in our original biological conception or generation, nor are we active agents in our regeneration.
Sproul, R.C.; Grace Unknown: The Heart of Reformed Theology; Baker Books; Grand Rapids, MI; copyright 1997; p. 189