“All the church’s triumphs over sin and error have been effected by the word of God. So long as she uses this and relies on it alone, she goes on conquering; but when any thing else, be it reason, science, tradition, or the commandments of men, is allowed to take its place or to share its office, then the church, or the Christian, is at the mercy of the adversary.”
Charles Hodge
It's a battle field, not a playground. The gates of hell cannot prevail against the church that is fully armed for battle, but the soldier who thinks he can go to battle without a sword commits suicide. The sword must be taken up if the kingdom is to be defended, let alone see increase. Only the sword of the Spirit cuts between the joints and marrow of the soul and the thoughts and intents of the heart. Scripture is more powerful than a two edged sword. This is how we fight our battles.