At midnight the Lord killed all the first-born sons in Egypt, from the king's son, who was heir to the throne, to the son of the prisoner in the dungeon; all the first-born of the animals were also killed.
The first-born of an animal already belongs to the Lord, so no one may dedicate it to him as a freewill offering. A calf, a lamb, or a kid belongs to the Lord,
What, then, of those who despise the Son of God? who treat as a cheap thing the blood of God's covenant which purified them from sin? who insult the Spirit of grace? Just think how much worse is the punishment they will deserve!
It was faith that made him establish the Passover and order the blood to be sprinkled on the doors, so that the Angel of Death would not kill the first-born sons of the Israelites.