The great wall of China is an imposing structure. It was built to protect China from attacking enemies. When looking at it, we would expect that it would protect that portion of the country from attack. But the fact is that China has been invaded seven times across that wall. The failure is not the wall, but a failure of the gatekeeper to maintain his post. God can, and does, build a wall of protection around us. However, if we as the gatekeeper of our life do not maintain a diligent watch, that wall will fail to protect us.

The writer of Jude was writing to a people that had allowed Greek culture to infiltrate the doctrine of the Church to the point that many had begun to question the authenticity of the Gospel and the physical presence of Jesus on earth. He begins by reminding them of the faith they had received and that faith still makes a difference in their lives. Because of the gospel of Jesus, we are changed and do not live, talk, and think like the rest of the world. It is up to maintain our guard against the enemy. That begins with building on a solid foundation of faith. The writer tells them to pray in the Holy Ghost. It is that prayer life that builds that solid foundation.