James 4:4 Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.
Adultery here is not within the scope of marital issues, but that of idolatry of the world, association and admiration of things not of God. If one argues, sure the good qualities of worldly achievements are attributed to God, then it falls to one the responsibility of glorifying God's name in the world, not just in one self. One has no excuse, of not preaching to one's non-christian friends, in eagerness, in enthusiasm, in agony. One cannot pass this responsibility back to God, nor to others, nor to "time".
Romans 5:10 For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.
The true cure in psychology. While the world is using this medicine, that prescription for "symptoms" of the so called bi-polar, manic disease, etc., the God does not blame the problems on nature. It is called sin, as much as today's most prestigious doctors try to explain away how "natural" it is for someone to do evil.
But Romans 5 does not jump to or stop at sin. It starts from we are weak (v. 6), then sinners (v. 8) and finally we are enemies of God (v. 10). This cure is not just for the psychiatric patients, but for all mankind.
If we agree to follow this trail (v. 6, 8, 10), we would have to admit that we were all at one point enemies of God. This is one tool I used to filter out false fellowship: I was asked to teach Calvin's Institutes mainly to only one guy by the pastor one time. Why? Because he shows eagerness to form a fellowship, the pastor said. If I refuse, I'd be in contempt towards to pastor, so I must endure. That means he would have much to proof to me. As a medical staff, he has erratic schedule, so our studies were on and off. I pretend to ignore that (though how he would have his own fellowship with this kind of schedule is beyond me), until we got to Romans 5:10, which he couldn't accept. I am not surprised. Many Chinese "believers" couldn't. "How could I ever have been God's enemy!!??". Thus, ended our supposedly long course, we barely covered 30% of Book I. Of course, knowing the pastor's discernment ability now, I have no reason not to say: "If they truly desire, let them tell me what is substitutionary atonement", take a test, then I'll know if they truly desire to learn, to form such things as a fellowship group. If anyone asks me to teach this or that again, I'll ask them to submit an essay first.