We live according to the flesh or according to the spirit

The ethics has a purpose: the study of the good and the evil. The ethics explains that the good and the evil have their origin in the truth and in the falsity.Truth and falsehood are concepts previous to good and evil. Why? Because to know if something is good or bad first you have to know it, something is false when it is presented as something that is not, remember and this is important that abstraction does not admit falsehood, as in the case of mathematics.From the metaphysical point of view evil is a deprivation of good affected by falsehood, but the evil is also a discernment.We all discern, we all choose in one way or another. There is a chaotic, unjust, destructive mood of thinking to this we call bad discernment, remember the concept of natural man in 1 Corinthians 2:14-15. In the other hand there is a benevolent, uplifting, just mood of thinking to this we call it good discernment.The ways of thinking are lifestyles, we choose.The goal of sin are the false goods: happiness, good fortune, abundance of material goods; But the purpose of rectitude is the true good to achieve: the eternal life. 
In the text of Romans 6:23 wages means return, the return of the sin (law of the return, you reap what you sow).
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