Fly You Fools

When faced with insurmountable evil and certain death, Gandalf tells Frodo and the rest of the Fellowship of the Ring, "Fly you fools."
God warned Lot and his family to flee from sin and destruction as he was about to rain fire on Sodom.
We too need to flee sin and find salvation. Our job isn't to fight evil, God does that, our job is to flee as far and as fast as we possibly can.