God is good

The good is a nature, a spiritual gift and a mood of discern:
The good as a nature:
Aristotle in his book "Politic" explains that a nature is toward what the being tends in its development, example: the nature of the worm is the butterfly.
Thomas Aquinas father of the scholasticism take this idea and affirm that the good is a nature, every being tends towards his own good or perfection explains, example: the house is good when it is finished, the fruit is good when in mature.

The good as spiritual gift:
Thomas Aquinas explains that the good is a spiritual gift. God is the source of the good. "Only God is good" Mark 10:18. The good is a perfection of god, we inherit the good from God.
The good as Spiritual Gift is known as the Golden Rule: "Do unto others as you would have them do unto you" Matthew 7:12, this is also known as imitating Jesus. A practical case of this rule is the parable of the  Good Samaritan. Luke 10: 29-37

The good as a discernment:
Good and evil are lifestyles. The good as discernment is one of the seven gifts of the Holy Spirit. The spiritual gift of good discernment accompanies the spiritual gift of knowledge and the gift of wisdom after the Gnosis. The goal of this spiritual gift is to separate what is wrong from what is right, this gift in religion is directly related with the Holy Spirit.
http://www.quintoevangelio.com.ar/en/articles/item/10-god-is-good.html

The Beatitudes

The beatitudes are the starting point of the teaching of  Jesus in the sermon of the Mountain. The beatitudes teach us the functioning of the spiritual laws.
Living according to the spirit is to live the spiritual gifts, is to search the correct (for the spiritual gift of counsel) and the best (for the mercy and the continuous improvement). The beatitudes are promises for those who choose the right path, for those who choose to live according to the spirit.
The beatitudes respond to the desire for the good, the virtues (like Justice) instead responds to the desire for happiness.
Is importante to notice that beatitudes must be read using the spiritual gift of knowledge and not the reason or to say beatitudes must be read using the progressive thinking.
The beatitudes are an expression of hope.
The beatitudes are 4 in Luke 6:20-22 and 8 in Matthew 5:3-12. Each beatitude respond to a spiritual gift, the beatitudes are the plan of god, the best expression of the kingdom of God, the empire of the divine perfections.
http://www.quintoevangelio.com.ar/en/articles/item/263-the-plan-of-god.html