Something for Christmas

I received this text message from Irene last night. It was the most beautiful and meaningful CHRISTMAS for me.

C - Christ gave
H - Himself as
R - Reminder so that
I - Individuals know the
S - Sacrifices
T - That He did for
M - Mankind to
A - Acheive the gift of
S - Salvation

Now I am wondering whose brainchild is this...