In doing a study of Ephesians 6:11-18 I found it difficult to memorize the "whole armor of God". Here are the verses and here is a little study trick I use to remember them.

Be Bold - Stand Strong - Have Spiritual Power
BB SS HSP

The first B in Be Bold is the Belt of Truth
The second B in Be Bold is the Breastplate of Righteousness
The first S in Stand Strong are the Shoes of the Gospel of Truth
The second S in Stand Strong is the Shield of Faith
The H in Have Spiritual Power is the Helmet of Salvation
The S in Have Spiritual Power is the Sword of the Spirit of the Word of God
The P in Have Spiritual Power is Prayer

Eph 6:11-18

11 Put on the whole armor of God. that you may be able to stand against the wiles of the devil.
12 For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age, against the hosts of wickedness in the heavenly places.
13 Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand.
14. Stand therefore, having girded your waist with truth, having put on the breastplate of righteousness,
15 and having shod your feet with the preparation of the gospel of peace;
16 above all, taking the shield of faith with which you will be able to quench all the fiery darts of the wicked one.
17 And take the helmet of salvation, and the sword of the spirit, which is the word of God;
18 praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints- (NKJV)
Be bold, stand strong, and have spiritual power.