While Jesus was on earth, he convicted the world of sin, righteous, and judgment — not to condemn them, but so that he might save them.
Now that Jesus has returned to his place by the Father’s side in heaven, he has sent his Holy Spirit to continue that same ministry. Convincing the unbelieving world of sin, so that they might seek its cure in Christ; of righteousness, that they might see that their best deeds are insufficient; and of judgment, because the ruler of this world has been judged and defeated at the cross of Jesus Christ.