The gospel declares that the Holy Spirit brings about the new birth and that because of the Spirit’s power within us, we gain the ability to do God’s will. In other words, the new birth and the new walk are supernaturally bestowed. If by the sheer power of the will even a “pagan” is able to comply with a tough set of rules for living, then what does it say of the Christian who supposedly is supernaturally endowed but lives a duplicitous life? This is a hard question for the believer to answer. Only in and through the power of the Holy Spirit is the Christian walk even possible.
-Ravi Zacharias, The Grand Weaver p122.