We must acknowledge the good, but also the bad, of our past — memories of deliverance, but also that from which we were delivered.
In what way is this night, to use the words of God to Moses and the people of Israel, a "memorial" (Ex. 12:14)?
Our heritage and church buildings can become idols, but so can virtually anything: our work, our country, or even our children.
The renewal of the Church and of Creation will require people who know in their bones that the path to life leads through sacrifice and death.