The need for a helmet in a soldier’s armor seems fairly self evident. The head is both one of the most vulnerable and most visible targets on any human. A sufficient blow to the head is almost certain to be fatal. Our head, or more precisely, our mind is also one of the most vulnerable parts of us to attack by Satan.
What are these attacks on our minds? Satan wants us to doubt that we are eternally secure in our salvation in Jesus Christ. If he can divert us into a constant effort to maintain our reconciliation to God, then he can render us useless in our service to Him.
Since Paul was apparently speaking to believers in this passage, he is probably not referring to the Helmet of Salvation as the fact of being saved itself. He seems certain to be referring to the hope which we have in the salvation we already possess.
Our salvation is eternally protected by God, and the Helmet of Salvation is simply the assurance we have it no matter the doubts Satan may cast in our paths. Don’t let his doubts and discouragement turn you away from the things God really wants you to concentrate on!
I present posts about God's Word, with a personal focus on how God's grace is received through saving faith in the Lord Jesus Christ... Sinners must understand and obey the Gospel of our Lord Jesus Christ... See this link for more...