“When you came to Christ, you were “circumcised,” but not by a physical procedure. It was a spiritual procedure – the cutting away of your sinful nature. For you were buried with Christ when you were baptized. And with him you were raised to a new life because you trusted the mighty power of God, who raised Christ from the dead.” (Colossians 2:11-12 NLT)
Jewish males were circumcised as a sign of the Jews’ covenant with God. With the death of Christ circumcision was no longer necessary, as our commitment to God is now written on our hearts, not on our bodies.
Circumcision is related to baptism, with baptism serving as our New Covenant commitment to God. Baptism parallels the death, burial and resurrection of Christ, and it also portrays the death and burial of our old sinful ways followed by our new life in Christ.
As believers, the same power that raised Jesus from the dead is able to help us overcome our sinful ways.
"In order to live a life of holiness, we must first receive new life from God - we must be born from above." - J. Vernon McGee