When we have repented of our sins, been baptized in Jesus name, and filled with His Spirit, we have put on Christ.

"For as many of you as have been baptized into Christ have put on Christ." - Galatians 3:27

"Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost." - Acts 2:38