The common Christian phrase is "praying for a hedge of protection" around them. A hedge? Seriously? Is that the best you can do?
If we are free to ask for God's protection, please give me something a little more compact
What really gets me is when people give the Enemy too much credit. Yeah, you're not suppose to invoke a mano-y-mano type brawl, but don't short change what God can provide when the Enemy comes at your hedge with this ...
It's red too! Aigh!
Just remember that God won't place anything in front you that He doesn't think you can't handle with Him.