The difference between good and evil according to the Bible

The study of the good and the evil correspond to the science of the ethics. All the ethical knowledge of the bible is sinthetized is the psalm 1, the psalm of the two ways:

"Blessed is the one
who does not walk in step with the wicked
or stand in the way that sinners take
or sit in the company of mockers,
but whose delight is in the law of the Lord,
and who meditates on his law day and night.
That person is like a tree planted by streams of water,
which yields its fruit in season
and whose leaf does not wither-
whatever they do prospers.
Not so the wicked!
They are like chaff
that the wind blows away.
Therefore the wicked will not stand in the judgment,
nor sinners in the asembly of the righteous.
For the Lord watches over the way of the righteous,
but the way of the wicked leads to destruction". Psalm 1

The message of the psalm is clear, the good or the evil are not relative concepts, are paths, mentalities, moods of choose. Those who choose to be progressive, peaceable,edifyng, just, benevolent; this is the good mentality. What they reap? they reap blessings.
And those who choose to be injust, chaotic, destructive, this is the bad mentality. What they reap? They reap curse, death, ruin.
We have to choose fundamentally between the hit and the error. This is the base choise. Two discernments, two paths, two retributions.
This teaching of the psalm has two equivalents in the gospels: the beatitudes in luke 6:20-26 and the parable of the good samaritan, Luke 10:25-37.
We must understand that this in practice means that there are basically two types of people: the good and the bad, the righteous and the wicked. And that they are people that do not tend to live together, and this is so, because basically there are two ways of thinking that reject each other. Discern implies that you act with a particular sense and logic.
The wicked and the righteous can live together as long as they find a benefit in mutual association, but they can't get pleasure from the mutual company, because the good and the bad bear different fruits.
There is an affirmaction of Jesus about the matter:
"For there is no good tree which produces bad fruit, nor, on the other hand, a bad tree which produces good fruit. For each tree is known by its own fruits" Luke 6:43-44