And you are to keep this command as a permanent statute for you and your descendants.
24. And ye shall observe this thing. He again repeats the precept as to its annual celebration, and expressly says, that, when they have come into the land, the recollection of their deliverance is yearly to be revived by this rite.
I. Moses is here, as a faithful steward in God's house, teaching the children of Israel to observe all things which God had commanded him; and no doubt he gave the instructions as largely as he received them, though they are not so largely recorded. It is here added, 1.
Commenting on Exodus 12:21-28
And ye shall observe this thing for an ordinance to thee and thy sons for ever. Not this last thing of sprinkling the blood, which was peculiar to the passover in Egypt; but the whole before observed relating to the feast of the passover, and the feast of unleavened bread, and all the rites appertaining to them, which were to be observed until the coming of Christ.