After his resurrection, Jesus sends us all out to do what he did: "As the Father has sent me, so I send you" (John 20:21 NRSV). And he gives us his authority to do it: "All authority in heaven and on earth has been given to me. Therefore go" (Matt. 28:18-19). Why else would he have given us his authority if we weren't supposed to use it?
The attitude of so many Christians today is anything but fierce. We're passive, acquiescent. We're acting as if the battle is over, as if the wolf and the lamb are now fast friends. Good grief—we're beating swords into plowshares as the armies of the Evil One descend upon us. We've bought the lie of the Religious Spirit, which says, "You don't need to fight the Enemy. Let Jesus do that." It's nonsense. It's unbiblical. It's like a private in Vietnam saying, "My commander will do all the fighting for me; I don't even need to fire my weapon." We are commanded to "resist the devil, and he will flee from you" (James 4:7). We are told, "Your enemy the devil prowls around like a roaring lion looking for someone to devour. Resist him" (1 Peter 5:8-9); "Fight the good fight" (1 Tim. 1:18); "Rescue those being led away to death" (Prov. 24:11).
Seriously, just this morning a man said to me, "We don't need to fight the Enemy. Jesus has won." Yes, Jesus has won the victory over Satan and his kingdom. However, the battle is not over. Look at 1 Corinthians 15:24-25: "Then the end will come, when he [Jesus] hands over the kingdom to God the Father after he has destroyed all dominion, authority and power. For he must reign until he has put all his enemies under his feet." After he has destroyed the rest of the Enemy's works. Until then, he must reign by bringing his enemies under his feet. Jesus is still at war, and he calls us to join him.