Finally, my brethren, be strong in the Lord, and in the power of his might. Put on the whole armour of God, that ye may be able to stand against the wiles of the devil.
In the New Testament, believers are often described as soldiers of Christ. Paul instructed Timothy to wage the good warfare, and to fight the good fight of faith (1 Tim 1:18; 6:12). We must endure hardship as good soldiers of Jesus Christ (2 Tim 2:3), not using carnal weapons, but those “mighty in God for pulling down strongholds, casting down arguments and every high thing that exalts itself against the knowledge of God” (2 Cor 10:4-5).
Soldiers have to wear armour during the battle to keep themselves safe. The whole armour of God is necessary if we are to defeat the enemy, because Satan always attacks the areas that are exposed.
The Bible is the divine training manual providing instructions on the purpose and use of each piece of armour. It is called the word of truth (Eph 1:13; 2 Tim 2:15), the word of righteousness (Heb 5:13), the gospel of peace (Acts 10:36; Eph 6:15), the word of faith (Rom 10:8), the gospel of salvation (Rom 1:16; Eph 1:13) and the word of God (Eph 6:17).
In one sense, the whole armour of God also represents the Lord Jesus, the captain of our salvation. He is the truth (John 14:6), He is our righteousness (2 Cor 5:21) and He is our peace (Eph 2:14). He is the author and finisher of faith (Heb 12:2), He is our salvation (Luke 2:30) and He is the Word of God (John 1:1). In Romans 13:14, Paul exhorts the believers to ‘Put on the Lord Jesus Christ.” In Him we can have victory!
Related well-known hymn:
“Soldiers of Christ, arise, and put your armour on,
Strong in the strength which God supplies through His eternal Son;
Strong in the Lord of Hosts, and in His mighty power,
Who in the strength of Jesus trusts, is more than conqueror.” Charles Wesley (1749).