This is the glory and miracle of grace, that God, through the Holy Spirit, is able to transform a stubborn, rebellious, and unbelieving will into a passionate, obedient, believing will without violating the integrity of the individual or diminishing the voluntary nature of one's decision to trust Christ for salvation.
God is able to cause all things people do to us, even the bad things, to work together for our good (Rom. 8:28). That isn't to say that all things are good, but that God can orchestrate the evil into a symphony of glory.
Many Christians are either woefully deficient in their knowledge of Scripture or noticeably devoid of any experience of God's power. The Lord never intended this for His people. We have all seen firsthand the joyless intellectual arrogance the absence of spiritual power can produce, as well as the fanatical emotional excess that comes from the lack of theological integrity.