The Passover refers to that event, during which the ancient Israelites are spared God's judgement over all of Egypt. This was the straw that broke the camel's proverbial back and led to their liberation from bondage.  Even so, what a great cost, the death of the firstborn.   Today's message considers that cost.  How are we, as people of faith, to respond.  Our liberation from sin and death, it too was won at great cost.  We rejoice but there ought to be in our celebrations a solemnity as well as we consider the suffering that made that liberation possible.