According to the NASB, iniquity is found 192 times in the Hebrew Scriptures; guilt 172 in the Complete Jewish Bible. It is iniquity in the heart that causes sinful behavior. After King David sinned with Bat Sheva, he was so grieved with his guilt and the iniquity in his heart that he asked Elohim not to take His Ruach HaKodesh (Holy Spirit) from him. There is double punishment for iniquity that not only includes guilt, but also the punishment that comes from being guilty.
Because the word ‘law’ is not specifically used in the Hebrew Scriptures, the word ‘lawless’ is used for those who are wicked. To be without ‘law’ is to be considered wicked. Rejecting Torah makes a person wicked and lawless.