A few years ago, an attempted bank robbery was thwarted when an armed and courageous customer stopped a man who claimed to have a bomb strapped to his chest. Here’s what happened.

Shortly after the bank opened, a man approached a teller and threatened to detonate a bomb if she didn’t hand over the money. Another teller, who saw what was going down, alerted long-time customer Nabil Fawzi, who happened to be legally packing a handgun.

Calmly, Fawzi pulled out his concealed pistol, pointed it at the robber and firmly announced, “You are not robbing this bank today!” He then ordered the thief to sit in a chair and held him at gunpoint until police arrived.

Most of us won’t witness a robbery at our local bank, but Jesus warned that we all are in danger of being robbed. When He described Himself as the “Good Shepherd” (John 10:11), Jesus reminded His followers that there is an unseen thief who is out “to steal and kill and destroy” the life He came to restore (John 10:10).

The “thief” Jesus referred to is Satan—the once mightiest of angels who fell when he became arrogant and turned against his Maker (Isaiah 14:12-14). Though God defeated Satan’s attempt to overthrow heaven, Satan and his fallen angels are still active today.

Jesus wants to give us life, and Satan wants to steal it away. The evil one is bent on keeping us from the life with God that he once had but can never get back. It’s imperative that we know this, so that we can be alert and resist him (1 Peter 5:8-9).

Satan is an accomplished thief, but we’re far from helpless. Like Nabil Fawzi, we are armed (but with God’s truth) and can firmly tell him, “Not today!”