Do not leave any of it until morning; before the morning you must burn up any part that is left over.
Moses and Aaron here receive of the Lord what they were afterwards to deliver to the people concerning the ordinance of the passover, to which is prefixed an order for a new style to be observed in their months (Exo 12:1, Exo 12:2): This shall be to you the beginning of months.
Commenting on Exodus 12:1-20
And ye shall let nothing of it remain until the morning,.... It was to be all ate up; a whole Christ is to be received and fed upon by faith; Christ in both his natures, divine and human, united in his person, in all his offices of prophet, priest, and King, and with all the benefits and blessings of his grace, and which come by...
let nothing of it remain until the morning--which might be applied in a superstitious manner, or allowed to putrefy, which in a hot climate would speedily have ensued; and which was not becoming in what had been offered to God.