Arise, Lord! Break the arm of the wicked man!

The news from Paris tonight is a horror. If you are struggling for the words to pray in the face of such evil, consider lifting up the words of Psalm 10:

¹² Arise, Lord! Lift up your hand, O God.
    Do not forget the helpless.
¹³ Why does the wicked man revile God?
    Why does he say to himself,
    “He won’t call me to account”?
¹⁴ But you, God, see the trouble of the afflicted;
    you consider their grief and take it in hand.
The victims commit themselves to you;
    you are the helper of the fatherless.
¹⁵ Break the arm of the wicked man;
    call the evildoer to account for his wickedness
    that would not otherwise be found out.

¹⁶ The Lord is King for ever and ever;
    the nations will perish from his land.
¹⁷ You, Lord, hear the desire of the afflicted;
    you encourage them, and you listen to their cry,
¹⁸ defending the fatherless and the oppressed,
    so that mere earthly mortals
    will never again strike terror.