What is sanctification?
“Some of you were like this; but you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God.”
— 1st Corinthians 6:11
When a person is born again, he or she is set apart from everything else for God. This begins a process of growing toward spiritual maturity through the power of the Holy Spirit who lives inside us.
(Taken from “Know the Truth:60 Questions and Answers on Christian Beliefs” from First Baptist Church in Tallassee, Alabama; Based on the 2000 Baptist Faith & Message)