The only people who believe are those who had been appointed to eternal life. God only grants the gift of faith to those who are predestined to salvation. He chose us, and to those he has he gives the power to believe.
We cannot learn fear of God and the basic principles of godliness, unless we are pierced by the sword of the Spirit and destroyed. It is as if God were saying that to rank among his sons our ordinary natures must be wiped out.