A Christian Prayer for ISIS

This is not the only prayer that can be prayed for them, but it is a valid one, from Psalm 58:

Break the teeth in their mouths, O God;
Lord, tear out the fangs of those lions! 

Let them vanish like water that flows away;
when they draw the bow, let their arrows fall short. 

May they be like a slug that melts away as it moves along,
like a stillborn child that never sees the sun. 

Before your pots can feel the heat of the thorns—
whether they be green or dry—the wicked will be swept away. 

The righteous will be glad when they are avenged,
when they dip their feet in the blood of the wicked. 

Then people will say,
“Surely the righteous still are rewarded;
surely there is a God who judges the earth.”

NB: Romans 12:19

Do not take revenge, my dear friends, but leave room for God’s wrath, for it is written: “It is mine to avenge; I will repay,” says the Lord.