16:2 And the LORD said unto Moses, Speak unto Aaron thy brother, that he come not at {a} all times into the holy [place] within the vail before the mercy seat, which [is] upon the ark; that he die not: for I will appear in the cloud upon the mercy seat.
(a) The high priest entered into the holiest of holies just once a year in the month of September.
16:2 At all times - Not whensoever he pleaseth, but only when I shall appoint him, namely, to take down the parts and furniture of it upon every removal, and to minister unto me once in the year. Lest he die - For his irreverence and presumption. In the cloud - In a bright and glorious cloud, over the mercy - seat, as a token when I would have him come.
16:1-14 Without entering into particulars of the sacrifices on the great day of atonement, we may notice that it was to be a statute for ever, till that dispensation be at an end. As long as we are continually sinning, we continually need the atonement. The law of afflicting our souls for sin, is a statue which will continue in force till we arrive where all tears, even those of repentance, will be wiped from our eyes. The apostle observes it as a proof that the sacrifices could not take away sin, and cleanse the conscience from it, that in them there was a remembrance made of sin every year, upon the day of atonement, Heb 10:1,3. The repeating the sacrifices, showed there was in them but a feeble effort toward making atonement; this could be done only by offering up the body of Christ once for all; and that sacrifice needed not to be repeated.