Sowing in the spirit

To understand what it means "sowing in the spirit", we have to know the meaning of the parable of the good samarithan (Luke 10:25-37), and the parable of the sower (Matthew 13). The parable of the good samarithan explain to us that we have to choose between the sin like the pharisee or we live righteously like the good samarithan. The good samarithan acts according to the golden rule, this rule is known as the spiritual gift of rectitude or imitate god. Imitate God is to live according to the spirit. Practice the sin is to live according to the flesh. We have to choose. The 10 commanments is these scheme is a form of error, an heresy.
The parable of the sower explain to us the importance of receive the wisdom of God, retain it and put it in practice with constancy. The spiritual gift of fear of the lord or serenity is define as constancy, firmness, devotion, ecuanimity. This gift is the path to ilumination.
Sowing in the spirit is the resume of this parables, is to live righteously, to search the wisdom of god with contancy and firmness. The kingdom of god as ethical concept means all this, to search the true good for men: the eternal life.

Ethic Rules

The Golden Rule: Do unto others as you would have them do unto you, and the Silver Rule: Do not do unto others what you would not have them do unto you, are ethic rule of universal reach.
The base of the ethical behavior is the empathy, a faculty of the spirit.
The base of Justice is the desire for happiness, instead the base of the ethic rules is the desire for the good. Justice is not enough.
Happiness is a result of the ethical behavior not a goal, these ethical principles have a property: the minimization of the suffering, as a result, happiness arises.
"Always act with principles", this is known as righteous life, we all have a ranking of righteousness, the goal of ethics is the life in common, or communion, the common good, the integrity.
The Law of the Return complements the previous rules as a law of balance
http://www.quintoevangelio.com.ar/en/articles/item/74-ethic-rules.html

The Spiritual Gift of Rectitude

Living in communion: The Parable of the Good Samaritan: Luke 10:25-35
On one occasion an expert of the Law stood up to test Jesus. Teacher he asked: "What must I do to inherit the eternal life?"
What is written in the Law? he replied. How do you read it?
He answered: "Love your Lord your God with all your heart and with all your soul and with all your strength and with all your mind", and, "love your neighbor as yourself".
You have answered correctly, Jesus replied: Do this and you will live.
But he wanted to justify himself, so he asked Jesus: and who is my neighbor?
Jesus said: "A man was going down from Jerusalem to Jerico, when he was attacked by robbers. They stripped him of his clothes, beat him and went away, leaving him half dead. A priest happened to be going down the same road, and when he saw the man, he passed by on the other side. So too, a levite, when he came to the place and saw him, passed by on the other side. But a Samaritan, as he traveled, came where the man was, and when he saw him, he took pity on him. He went to him and bandaged his wounds, pouring on oil and wine. Then he put the man on his own donkey, brought him to an inn and took care on him. The next day, he took out two denarios and gave them to the innkeeper. "look after him", he said: "and when I return I will reimburse you for any extra expense you may have"

In this practical case of the good samaritan we have two choices: the sin or the golden rule: "Do unto others as you would have them do unto you" this is also known as rectitude or imitate Jesus. This rule is the definition of the ethical behavior. The goal of rectitud is the communion, the life in common with God and the neighbor. We choose between good and evil, there is no term for Justice or the commandments, the sin (living according to the flesh) and the rectitude (lifing according to the spirit) are lifestyles, that bear fruits: the fruits of the spirit (Galatians 5:22-23) or the works of the flesh (Galatians 5: 19-21).

http://www.quintoevangelio.com.ar/en/articles/item/277-ethical-behavior.html

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