OK so let's read the passage:
Ephesians 6:10-16
10Finally, be strong in the Lord and in the strength of His might.
11Put on the full armor of God, so that you will be able to stand firm against the schemes of the devil.
12For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world forces of this darkness, against the spiritual forces of wickedness in the heavenly places.
13Therefore, take up the full armor of God, so that you will be able to resist in the evil day, and having done everything, to stand firm.
14Stand firm therefore, HAVING GIRDED YOUR LOINS WITH TRUTH, and HAVING PUT ON THE BREASTPLATE OF RIGHTEOUSNESS,
15and having shod YOUR FEET WITH THE PREPARATION OF THE GOSPEL OF PEACE;
16in addition to all, taking up the shield of faith with which you will be able to extinguish all the flaming arrows of the evil one.
17And take THE HELMET OF SALVATION, and the sword of the Spirit, which is the word of God.
18With all prayer and petition pray at all times in the Spirit
In chapter 6 of Ephesians, Paul is telling everyone how they should behave. Children, parents, slaves, slave owners.
In verse 10 Paul tells everyone, even us, that are strength is to come from God,,,the Holy Spirit inside of us.
And we'll be needing this strength because we are not fighting against flesh and blood,,,IOW, persons, but we are fighting with unseen spirits, satan and the evil ones that follow him (the evil angels) and they are the rulers of the unseen world.
So to fight them off we are to use:
The Truth of God as taught in the N.T.
We need to be approved by God by His breastplate.
We are to preach the good news: That everyone can be saved by God.
We need our faith.
We need our salvation; and to stand firm on it.
We need the sword of the Spirit...which is the word of God.
Remember when Jesus was in the desert right after He was baptized...
Satan attacked Him,,,and how did Jesus respond?
With His faith and the Word of God. (from the O.T.).
I hope that you start reading the bible on your own and start to understand it really well so that you can actually explain verses. This is a good thing to be able to do so that you can test everything anyone says with the word of God.