Why is Jesus referred to as the Lamb in the context of the Passover?

Jesus is referred to as the Lamb because He embodies the characteristics of the Passover lamb, which was to be without blemish and slain for the sins of the people. Just as the lamb's blood protected the Israelites from God's judgment in Egypt, the blood of Jesus protects believers from the wrath of God due to their sins. In 1 John 1:7, it is affirmed that the blood of Jesus cleanses us from all sin, emphasizing that His sacrificial death serves as the ultimate payment for sin, fulfilling the foreshadowing represented in the Passover.