Sin is human life contrary to the spiritual and moral laws of God, it is a violation of God's Will, the boundary between Good and Evil established by God.

Sin is man's desire to exercise his personal will against the Will of the Creator.               

Sin is deliberate disregard of qualms of conscience, also it is a violation of the spiritual and moral Laws of Life, embedded in the human conscience and a direct violation of the letter and spirit of the Will of God, expressed in the Ten Commandments, in the Teachings of the Prophets and the Teachings of Jesus Christ.               

Sin is man's conscious guilt before his own conscience, before God, the violation of man's relationship with God, peace with himself, with his neighbors, with all that surrounds him.

Sin is also the avoidance (for one's own self-interest) of the opportunity to do good.

 To sin means to live contrary to the Will of God, to do a deed contrary to the Biblical principles of the Ten Commandments, to miss the meaning and purpose of human existence and all life, to commit lawlessness, evil and therefore to suffer oneself and to cause suffering to others.

A "sinner" is a person who, contrary to the voice of his conscience, and knowing God's Commandments, willfully, for the sake of his own sinful interests, ignores, violates them.