The Armor of God - The Helmet Of Salvation

Ephesians 6:17

New King James Version (NKJV)

¹⁷ And take the helmet of salvation, and the sword of the Spirit, which is the word of God;

For the devil to be effective in his attempts on deceiving us, he has to create some form of doubt in us to waiver us from the full love of God as demonstrated by Jesus on the cross for us. Let's reflect back on our own childhood; we are afraid of the dark because we were told scary stories at night and some of our seniors even add fuel to the fire when they dress up as ghosts to scare the wits out of us.

Do you know that witch doctors cannot make their voodoo dolls effective if we don't subscribe to their spread of fear? notice that they have to tell you the time and mode of operations - like you will feel pain (object) in your body (location) at night (time) when you want to lie down or having your meal (time specific). Now, once you begin to believe this scare report, you will begin to look out for the pain whenever you are having your meals at night - dinner or supper - or when you go to bed. Soon, you will start to fantasize and imagine the needles going into the body.

My friend, I have good news for all. Jesus died to set us free from the bondage of sin to live in the realm of the Spirit. And since we live in the realm of the Holy Spirit, we will begin to repent  or change our mind (metaknoia in Greek) about the goodness of our Lord and we grow more and more in confidence that nothing can separate us from the love of God when we are in Christ.

Romans 8:35, 37-39

New King James Version (NKJV)

³⁵ Who shall separate us from the love of Christ? Shall tribulation, or distress, or persecution, or famine, or nakedness, or peril, or sword?

³⁷ Yet in all these things we are more than conquerors through Him who loved us.
³⁸ For I am persuaded that neither death nor life, nor angels nor principalities nor powers, nor things present nor things to come,
³⁹ nor height nor depth, nor any other created thing, shall be able to separate us from the love of God which is in Christ Jesus our Lord.

And so, once we know the secure position we have in Christ, we can then rest easy and not be swayed by what the devil throws at us.

Therefore we need to immerse our minds and 

Philippians 4:8

New King James Version (NKJV)

⁸ Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and ifthere is anything praiseworthy—meditate on these things.