en_tn_condensed/col/02/11.md

In him you were also circumcised

Paul is speaking of those who belong to Christ as if they were inside Christ's body. Alternate translation: "When you joined the church in baptism, God circumcised you"

a circumcision not done by humans

Paul says that God has made Christian believers acceptable to himself in a way that reminded him of circumcision, the ceremony through which Hebrew male babies were added to the community of Israel.