Justification is an instantaneous legal act of God in which he thinks of our sins as forgiven and Christ's righteousness as belonging to us, and declares us to be righteous in his sight. 


Sanctification is God's will for us. The word sanctification is related to the word saint; both words have to do with holiness. To "sanctify" something is to set it apart for special use; to "sanctify" a person is to make him holy.


Another word for regeneration is rebirth, related to the biblical phrase "born again". Our rebirth is distinguished from our first birth, when we were conceived physically and inherited our sin nature. 


Baptism is the means by which a person makes a public profession of faith and discipleship. In the waters of baptism, a person says wordlessly, "I confess faith in Christ; Jesus has cleansed my soul from sin, and I now have a new life of sanctification."