When we entered into the Christian life, we didn't step onto a playground; we walked into a battleground. We may not have heard the bombs bursting in the distance or seen the flash of the bayonets right in front of us, but we have most certainly been in harm's way. Satan's schemes are many, and while we don't often speak of them, we must always be on the alert to protect ourselves against them. Thankfully, God has graciously given us the means to defend ourselves against the attacks of the Evil One, a topic Paul raised near the end of his letter to the Ephesians.