To commemorate the death of the firstborn of the Egyptians, and Israel’s deliverance from Egypt, the Lord required the firstborn of Israel,
“And it shall be, when the LORD brings you into the land of the Canaanites, as He swore to you and your fathers, and gives it to you, that you shall set apart to the LORD all that open the womb…” (Exodus 13:11-16).
The Lord explained that Israel was to set apart the firstborn as a sacrifice to Him, but that they could redeem their firstborn males by offering a lamb instead.
He took the firstborn of Egypt because of Pharaoh’s stubborn rebellion against the Lord, and He took the firstborn animals among the children of Israel, but God gave His Son to deliver the world from the bondage of sin. Let us give ourselves to Him to show Him what we think of His immeasurable gift toward us.