Adam Clarke Bible Commentary

The seventh day - they rose early - Because on this day they had to encompass the city seven times; a proof that the city could not have been very extensive, else this going round it seven times, and having time sufficient left to sack and destroy it, would have been impossible. It is evident that in the course of these seven days there must have been a Sabbath, and that on this Sabbath the host must have encompassed the city as on the other days: the Jews themselves allow this, and Rab. De Kimchi says "He who had ordained the observance of the Sabbath commanded it to be broken for the destruction of Jericho." But it does not appear that there could be any breach in the Sabbath by the people simply going round the city, the ark in company, and the priests sounding the sacred trumpets. This was a mere religious procession, performed at the command of God, in which no servile work was done. Therefore Marcion's objection, that the God of the Hebrews showed a changeableness of disposition in commanding the Sabbath to be kept sacred at one time, and then to be broken at another, is without foundation; for I must contend that no breach took place on this occasion, unless it could be made to appear that the day on which Jericho was taken was the Sabbath which is very unlikely, and which none can prove. But if even this were to be conceded, it is a sufficient answer to all such cavils, that the God who commanded the Sabbath to be set apart for rest and religious purposes, has always authority to suspend for a season the operation of merely ceremonial laws, or to abrogate them entirely, when the purpose of their institution is fulfilled. The Son of man is Lord even of the Sabbath.