The Concupiscence is fundamentally the disordered desires, which focused on the apparent goods, incline man to error and suffering. The disordered desires deprives man of his true good or his only good: the bliss. That is the principle that orders the universe.
The bliss is from the spiritual and ethical point of view a ordering principle because by the law of the return (you reap what your sow) retributes blessing to the edifying and progressive and curse to the chaotic and destructive, that is to say "two paths, two retributions", this is expressed in the Psalm of the two ways (Psalm 1) of the Old Testament and the 4 beatitudes (Luke 6: 20-23) and 4 curses (Luke 6: 24-26) of the Gospel of Luke.
The rewards of the bliss are the fruits of the spirit: peace, joy. On the other hand, the retribution of sin (the path of error) is clear: the ruin and the death, we are responsible for the path that we choose in one way or another.
To talk about consupiscence is to talk about greed. About the nature of concupiscence the new testament explains:
"When tempted, no one should say, "God is tempting me". For God cannot be tempted by evil, nor does he tempt anyone; but each person is tempted when they are dragged away by their own evil desire and enticed. Then, after desire has conceived, it gives birth to sin; and sin, when it is full grown, gives birth to death." James 1:13-15.
The ten commandments make a clear reference to the problem of concupiscence and it is considered a serious fault, the tenth commandment in Exodus 20:17 says:
"You shall not covet your neighbor's house. You shall not covet your neighbor's wife, or his male or female servant, his ox or donkey, or anything that belongs to your neighbor."
Also Jesus in the gospels makes a mention to the subject of concupiscence:
"But I tell you that anyone who looks at a woman lustfully has already committed adultery with her in his heart", Matthew 5:28.
The virtue of temperance, according to Aristotle, is the virtue of the irrational part of the man that acts on the moderation of desires and passions.