Next, when the wall has fallen, _the protection is gone_. When a man's heart has its wall broken all his thoughts will go astray, and wander upon the mountains of vanity. Like sheep, thoughts need careful folding, or they will be off in no time. "I hate vain thoughts," said David, but slothful men are sure to have plenty of them, for there is no keeping your thoughts out of vanity unless you stop at every gap and shut every gate. Holy thoughts, comfortable meditations, devout longings, and gracious communings will be off and gone if we sluggishly allow the stone wall to get out of repair. Nor is this all, for as good things go out so bad things come in. When the wall is gone every passer-by sees, as it were, an invitation to enter. You have set before him an open door, and in he comes. Are there fruits? He plucks them, of course. He walks about as it were a public place, and he pries everywhere. Is there any secret corner of your heart which you will keep for Jesus? Satan or the world will walk in; and do you wonder? Every passing goat, or roaming ox, or stray ass visits the growing crops and spoils more than he eats, and who can blame the creature when the gaps are so wide? All manner of evil lust and desires, and imaginations prey upon an unfenced soul. It is of no use for you to say, "Lead us not into temptation." God will hear your prayer, and he will not lead you there; but you are leading yourself into it, you are tempting the devil to tempt you. If you leave yourself open to evil influences the Spirit of God will be grieved, and he may leave you to keep the result of your folly. What think you, friend? Had you not better attend to your fences at once?