What does the Bible say about the importance of keeping the Passover?

In 2 Chronicles 30, King Hezekiah called for the observance of the Passover, stressing its importance as a divine command meant to commemorate Israel's deliverance from Egypt. The Passover serves as a reminder of God's grace and mercy, particularly as it represents not only the historical event but also spiritual redemption from sin. The instructions given in Exodus 12 and Numbers 9 highlight the significance of observing this sacred festival, illustrating God’s continued mercy even when the people falter in their observance. Hezekiah's call to remember the Passover urges the nation to recognize God's covenant faithfulness and their need for repentance and worship.