The Kingdom of God is among you, Luke 17:21

The Kingdom of God is the center of the teaching of Lord Jesus, the teachings begin in the sermon of the mountain with the beatitudes (Matthew 5, Luke 6) and continue with the parables that describes the Kingdom. The kingdom of God is secret (parable of the hidden treasure, Matthew 13); is progressive (parable of the mustard seed, Mark 4); is sovereign (Parable of the Great Banquet, Luke 14), is new (the kingdom belong to those who are like the children, Matthew 19) The Kingdom of God is not the church, is the transformation of man towards his nature, to his full development, the likeness to God, and also the correct order of the society.

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