We are christian we don't take revenge our God is mighty ,justice,compatioan and strong. He is the one is going to take our revenge, as he did it with the people of israeal and saved them from phero's hand. we relay on him only  we don't stop praying and fasting and asking for his help as the psalm saying"some trust in chariots' and some in horses' but we will remember the name of the Lord our God.  They have bowed down and fallen,but we have risen and stand upright.