Colossians 2:11-12 says, “In Him you were also circumcised with the circumcision made without hands, by putting off the body of the sins of the flesh, by the circumcision of Christ,
buried with Him in baptism, in which you also were raised with Him through faith in the working of God, who raised Him from the dead.”
2 Timothy 2:21 says, “Therefore if anyone cleanses himself from the latter, he will be a vessel for honor, sanctified and useful for the Master, prepared for every good work.” Sanctified means set apart. In this verse the latter was referring to cleansing ourselves from folks who dishonor the Lord. 1 Corinthians 15:33 says that evil company corrupts good character.
Moses took his tent outside the camp to meet with the Lord. Exodus 33:7-11. Hebrews 13:12-13 says that “…He might sanctify the people with His own blood, suffered outside the gate. Therefore let us go forth to Him, outside the camp…”