Focus: calling us to rejoice in Jesus’ coming to be our high priest.

Here is a link to RC Sproul's thoughts on what it means that Jesus was cursed for us:

http://www.jesus.org/death-andresurrection/the-crucifixion/jesus-became-a-curse-for-us.html

and another article on "propitiation":

http://www.ligonier.org/blog/two-important-words-goodfriday-expiation-andpropitiation/