What does Passover mean to Christians?

It was when Moses told the pharaoh to let the Jewish slaves go. The pharaoh wouldn't give in so God sent ten plagues to Egypt, but He would protect the Jews. The passover was the tenth and final plague, as well as the worst. God told everyone to take a newborn lamb and sacrifice it, using its blood to paint their door. Then the angel God sent would "passover" their home and not kill their firstborn.