War, family dispute, grievance, controversy, quarrel, fighting are just the end result of the wars fought within our body.
Jas 4:1 From whence come wars and fightings among you? come they not hence, even from your lusts that war in your members?
In the above instance, evidently, the flesh won against the spirit.
Gal 5:17 For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other; so that ye cannot do the things that ye would.
Remember that the Children of God don't wrestle against flesh and blood nor use force to enforce personal interest.
Eph 6:12 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.
Killing will not save the body from eternal punishment, it is the doing of the flesh that we are to get rid of or kill.
Col 3:5 Mortify therefore your members which are upon the earth; lewdness, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry:
1 Cor 5:11 But now I have written to you not to keep company, if any man that is called a brother is a lewd person, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner: with such person no not to eat.
The truth is, we must take wrong and suffer ourselves to be defrauded by the so called brethren.
In a husband & wife relationship for example, each one has its own personal opinion unacceptable to the other. One has to give in for the issue to be resolved, otherwise something worst might happen. Giving in indeed is not a sign of being weak in the hope that he/she will realize later his/her wrong doings.
1 Cor 6:7 Now therefore there is utterly a fault among you, because ye go to law one with another. Why do ye not rather take wrong? why do ye not rather suffer yourselves to be defrauded?
The resulting controversy however, grieve the Holy Spirit of God that might leave us groping in the dark.
Eph 4:30 And grieve not the holy Spirit of God, whereby ye are sealed to the day of redemption.
There is no better things done by man under the sun. Everything is done in satisfying the lusts of the flesh.
Eccles 8:15 Then I commended mirth, because a man hath no better thing under the sun, than to eat, and to drink, and to be merry: for that shall abide with him of his labor the days of his life, which God giveth him under the sun.
Saving for incoming birthday, blessing of the house, feast in honor of whomsoever & such other vainly provisions are for the lusts of the flesh.
Rom 13:14 But put ye on the Lord Jesus Christ, and make not provision for the lusts of flesh.
Even at this instance alone we will know who is the children of God & who is not. For they that loveth pleasure are the children of the devil.
1 Jn 3:9 Whoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God.
1 Jn 3:10 In this the children of God are manifest, and the children of the devil: whoever doeth not righteousness is not of God, neither he that loveth not his brother.