When warfare reaches us—and it will—we must reach for our shields. We are to “take up the shield of faith.” The shield Paul’s readers would have imagined when they heard these words was no small shield, for in Roman times a soldier’s shield was four feet long by two and a half feet wide. Wielding one would have been like walking around with a door. It was not a Frisbee-like toy but a formidable piece of armor. – Alistair Begg