The law involving guilt offerings is very interesting. If a person hears or knows about a crime he is to report it and if he doesn't he is guilty. Also you may say something in your own speech and not realize what you're saying. Once you realize it you need to make a guilt offering, because you are guilty.
"The good man out of the good treasure of his heart brings forth what is good; and the evil man out of the evil treasure brings forth what is evil; for his mouth speaks from that which fills his heart." (Luke.6.45). Jesus taught that sin goes so much deeper than what we do or even what we say, it is what we think. Why does a person say something evil, because he thought it before he even said it. This shows are total depravity. You can often control your behavior and maybe even your tongue, but the mind, you can do nothing about that.
These three chapter show that man is sinful, God hates sin, therefore sin has to be atoned for. Blood has to be shed because you sinned. If a person takes what belongs to someone else, he is to pay it back in full plus add one fifth more, then blood is shed. This is a picture of repentance, Jesus Christ died for our sins, he is our guilt offering, but you must repent. You cannot steal from someone and keep what you have stolen, if you are truly repentant you will return it in full.
New American Standard Bible. (1995). The Lockman Foundation.