First, if you are looking for words in response to Peshawar, you should go to RevGal Julie Woods blog and pray with her.

http://julie-acountrygirl.blogspot.com/2014/12/the-slaughter-of-innocence.

Second, another prayer:

Holy One,

It’s unusually quiet where I am right now.   I find myself with a few minutes of simplicity and silence.

Oh, what a grace, what a mercy, what a peace.

I pray for this for all who need a moment.

Amen.