Matthew 16:18
And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it
When I hear this verse I think of a certain movie scene where the guy screams, you shall not pass. The guy knew the monster was going to try, but he still made it clear it would not happen. That is what Jesus is doing here. He is not saying the enemy won’t try. He is saying that even when they do with all their might, they will fail every time. The church that Christ built is stronger than anything the enemy has. So the next time the enemy comes at you, remind them that Jesus said they shall not prevail.
Warrior's Word of Faith 