I think its pretty simple
Spiritual Objectives: The souls of men and women.
Luke10: 10For the Son of man is come to seek and to save that which was lost.
Spiritual Battlefield: the Mind
2 Cor 10:
4(For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds)
5Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ;
6And having in a readiness to revenge all disobedience, when your obedience is fulfilled.
Spiritual weapons: The armour of God
Ephesians 6
11Put on the whole armour of God, that ye may be able to stand against the wiles of the devil.
12For 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.
13Wherefore 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.
14Stand therefore, having your loins girt about with
truth, and having on the breastplate of righteousness;
15And your feet shod with the preparation of the
gospel of peace;
16Above all, taking the shield of
faith, wherewith ye shall be able to quench all the fiery darts of the wicked.
17And take the helmet of salvation, and the sword of the Spirit, which is the
word of God:
18Praying always with all
prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;
More on Faith
Matthew
17Then Jesus answered and said, O faithless and perverse generation, how long shall I be with you? how long shall I suffer you? bring him hither to me.
18And Jesus rebuked the devil; and he departed out of him: and the child was cured from that very hour.
19Then came the disciples to Jesus apart, and said, Why could not we cast him out?
20And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.
21Howbeit this kind goeth not out but by
prayer and fasting.