11 Put on the whole armour of God, that ye may be able to stand against the wiles of the devil.
12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
13 Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand.
14 Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness;
15 And your feet shod with the preparation of the gospel of peace;
16 Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.
17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God
No matter what, we should always have on the WHOLE armor of God. It's not about picking and choosing which pieces of the armor we want to wear when it's convenient for us; we need ALL of it ALL the time. The sword is the only offensive tool, the rest of it is about defense. Don't let the enemy catch you defenseless. No excuse for that will ever do when God, through the Apostle Paul, has told us what to do and what awesome tools we have to use for this spiritual warfare. With that we should keep fighting the good fight of faith and not let up until the ultimate return of Christ Jesus. Stay encouraged!