29. And this shall be a statute for ever. This day of public atonement is now finally mentioned in express terms, and the affliction of souls, of which fuller notice is taken in chap. 23, is touched upon, that they may more diligently exercise themselves in more serious penitential meditations, nor doubt that they are truly purged before God; and yet in a sacramental manner, viz., that the external ceremony might be a most unmistakable sign of that atonement, whereby, in the fullness of time, they were to be reconciled to God. Wherefore Moses states at some length that this was to be the peculiar office of the priest; and by this eulogy exalts the grace of the coming Mediator, so that He may direct the minds of believers to Him alone.