The Greek verb endyo means to put on clothing, to clothe oneself with, or to invest someone with a quality or character. In Paul's theology, it is used metaphorically for putting on Christ and putting on the armor of God.
Endyo is one of Paul's most theologically rich verbs. Romans 13:14 commands: 'Put on (endysasthe) the Lord Jesus Christ.' Galatians 3:27: 'For as many of you as were baptized into Christ have put on (enedysasthe) Christ.' Ephesians 6:11: 'Put on (endysasthe) the whole armor of God.' The clothing metaphor is powerful: one puts on a garment that changes how others see you and how you move through the world. To 'put on Christ' is to take on His character, His righteousness, His identity โ not as pretense but as the new reality of the believer's union with Him. The image echoes the robing of priests (Leviticus 8:7) and kings โ investiture with a role and status. Baptism into Christ is the ultimate investiture.