So Joshua burnt Ai, and made it a heap forever, even a desolation, to this day.
 But then there is striking instruction in the manner of it: "And seven priests shall bear before the ark seven trumpets of rams' horns: and the seventh day ye shall compass the city seven times, and the priests shall blow with the trumpets." There is the greatest care to insist upon the word of Jehovah. The city was to be taken, and would surely be taken; but this could only be in God's way. There is no book in Scripture which demands obedience more rigidly than the Book of Joshua, which exhibits the people entering on their heavenly portion now by faith. "And it shall come to pass, that when they make a long blast with the ram's horn, and when ye hear the sound of the trumpet, all the people shall shout with a great shout; and the wall of the city shall fall down flat, and the people shall ascend up every man straight before him." So Joshua and the people do. He directs the priests and people accordingly, and they are found carrying out the instructions of Jehovah, whatever they might appear to the eyes of others, with the most careful obedience. All is persevered in exactly during the full term of waiting. (Joshua 6:1-7)
