Sin requires some sort of punishment (for example, Deuteronomy 19:11-13, 21; 25:1-3). To avoid punishment—receiving the penalty of the law—action must be taken to remove the guilt. In the Old Testament, offerings were performed to cover the penalty (see Leviticus 4-6), along with restitution in relevant cases. Those who sinned defiantly and neglected the required atoning sacrifice were “cut off,” remaining in their guilt.
Under the New Covenant, guilt is addressed by having sin washed away by the blood of Jesus Christ. Calling for humility, James commands believers to “cleanse your hands” and “purify your hearts” as requirements for entering God's presence (James 4:8-10). “Hands” represents action (i.e., stop doing wrong things), while “heart” signifies thinking (i.e., stop thinking bad thoughts). This cleansing is required for salvation (John 13:8; Titus 3:5). Water baptism symbolizes our redemption, in which our guilt is washed away, and we arise to newness of life (Acts 22:16; Romans 6:1-6).
Blood corresponds with the stain of guilt, but it is also the means of atonement for sin. Sprinkling with blood can both cleanse and consecrate (Leviticus 16:18-19; I Peter 1:2). Faith in the blood of Christ is the ultimate remedy for human guilt, bringing full and final atonement to those who believe (Romans 3:23-25).
Martin G. Collins
What Must We Do When We Recognize Our Guilt?
One's blindness does not excuse his guilt. The person is still guilty even though he did not know.
Unintentionally, thankfully, includes more than one might think at first glance. It means "to turn aside, to wander, to err, to make a mistake, to miss the mark." The person misses the real objective in life, which is to obey God and to be holy as He is holy. It includes sins done with a degree of consciousness, that is, an awareness of what one is doing, as well as sins done willingly out of weakness, but not sins done deliberately.
For example, the Bible clearly differentiates between manslaughter and murder. Manslaughter is the taking of a life accidentally. There is no plan to do it—it just occurrs. The head flies off a hammer, hits somebody in the head, cracks his skull, and he dies. Nobody deliberately plans to do that, though there may be some carelessness involved in it.
Murder, however, includes a measure of deliberateness, lying in wait, planning, setting one's mind to do it. It may be a situation in which one burns in anger against someone for a period of time. Though he has plenty of time to bring himself under control, he does not. Then, reaching the boiling point, he murders his "enemy."
John W. Ritenbaugh
Examples of Divine Justice