We put on God by putting on His armor.  Christ himself wore and made the armor, and the Holy Spirit fits it to us and makes it ours.

From Ephesians 6:10-12:  “Finally, be strong in the Lord and in the strength of His power; put on the whole armor of God, so that you may be able to stand against the wiles of the devil, for our struggle is not against blood and flesh but against the rulers, against the authorities, against the cosmic powers of this present darkness, against the spiritual forces of evil in the heavenly places.”

Joel R. Beeke (born 1952) is an American pastor and Christian theologian.