The cost of freedom for enslaved Yisra’el (Israel) was the death of the firstborn of Mitzraim (Egypt), and the cost of our freedom from slavery to the deathward lifestyle away from the Creator is the death of the LORD’s Firstborn, Yeshua the Messiah (Jesus the Christ).
The last three plagues, including the coming of the Destroyer for the firstborn of Mitzraim, and the first Pesakh are the focus of Torah reading בֹּא Bo (“come,” Exodus 10:1-13:16).