What does the Bible say about God's anger and grace?

The law is often portrayed as an expression of God's anger due to sin, serving to highlight our shortcomings and the wrath we deserve. For instance, in Leviticus, Moses expresses anger towards Aaron's sons for their failures regarding the sin offering. However, this passage also beautifully illustrates the grace of God, showing how Aaron, their father, intervened, demonstrating a protective, loving nature. This reflects the ultimate picture of God's grace when He intervenes for His people through Christ, who fulfills the law on our behalf, providing a pathway to reconciliation.