It is easy to downplay sin—to excuse it, to justify it, to call it anything but what it truly is. But sin is no small thing. It brings guilt and defiles. Sin separates us from a holy God. In Leviticus 4:1–5:13, we will unpack the significance of the sin offering and the seriousness of sin. The sacrificial system shows us that sin is not just a mistake to overlook—it is an offense that must be forgiven and a stain that must be cleansed. Yet, in His mercy, God provides a way.