In the soldier image the sword of the Spirit represents the Gospel work of the church. Here is the penetrating, searching, persuasive power of the Gospel as proclaimed by the apostles. A church or believer not proclaiming salvation is a soldier without the sword.
The helmet is the hope or anticipation of final salvation, when Heaven’s glory dawns on the soul and we see Christ – the greatest possible incentive to serving Him. Here is the Lord’s emphasis on eternal life, and the believer’s experience of death.
How the Word of God is deployed in sanctification, Gospel work, the personal walk, and the preservation of church purity – with scriptural examples.
In the armour provided for the spiritual warfare is the helmet of salvation, denoting four aspects of daily protection for the Christian: for assurance, for vocation, for the thought life and for the anticipation of glory.