According to the different theories we can get the different meaning of the sin. According to the Christianity when a man and woman are not following the commandment of God so this is kind of sin. According to Jewish people if you are not following the teaching of Moses then you are doing sin. For more reading visit at.http://nsdorg..com/2015/06/what-is-sin-actually.html

Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law - 1 John 3:4