If people won't admit their guilt they will never come to Jesus for salvation. People will justify themselves all the way to the grave. The Holy Spirit can overcome this and convict people of sin. See the difference between the crowd at Jesus' trial and at Pentecost! We look at what convicting the world of sin, righteousness and judgement means. Don't resist the conviction of the Spirit. Example from Jonathan Edwards' Sinners in the Hands of an Angry God. We need to pray for the Spirit to come!