Circumcision in the Bible: Colossians 2:11-12
Circumcision was practiced throughout the history of Israel as a symbol of belonging to God. In the New Testament, with the death and resurrection of Christ, we no longer need such a physical symbol, because Christ marks us spiritually as his own.
Colossians 2:11-15 - Into Thy Word Ministries
Identified in and with Christ! When we come to Christ, we are identified in Him, circumcised, and baptized spiritually, so our sinful nature becomes less and He becomes more.